add cef library

README.md

@@ -0,0 +1,11 @@
+# emsdk 构建
+$ git clone https://github.com/juj/emsdk.git
+$ cd emsdk
+$ ./emsdk install latest
+$ ./emsdk activate latest
+
+## emsdk 简单命令
+emcc main.cpp -std=c++11 -s WASM=1 -s USE_SDL=2 -O3 -o index.js
+
+## emsdk 构建cmake 工程
+ emcmake cmake .\CMakeLists.txt -G "Visual Studio 17 2022" -B ./embuild

Thirdparty/libcef/include/base/cef_atomic_flag.h

@@ -0,0 +1,88 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_ATOMIC_FLAG_H_
+#define CEF_INCLUDE_BASE_CEF_ATOMIC_FLAG_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/synchronization/atomic_flag.h"
+
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <stdint.h>
+
+#include <atomic>
+
+#include "include/base/cef_thread_checker.h"
+
+namespace base {
+
+// A flag that can safely be set from one thread and read from other threads.
+//
+// This class IS NOT intended for synchronization between threads.
+class AtomicFlag {
+ public:
+  AtomicFlag();
+
+  AtomicFlag(const AtomicFlag&) = delete;
+  AtomicFlag& operator=(const AtomicFlag&) = delete;
+
+  ~AtomicFlag();
+
+  // Set the flag. Must always be called from the same thread.
+  void Set();
+
+  // Returns true iff the flag was set. If this returns true, the current thread
+  // is guaranteed to be synchronized with all memory operations on the thread
+  // which invoked Set() up until at least the first call to Set() on it.
+  bool IsSet() const {
+    // Inline here: this has a measurable performance impact on base::WeakPtr.
+    return flag_.load(std::memory_order_acquire) != 0;
+  }
+
+  // Resets the flag. Be careful when using this: callers might not expect
+  // IsSet() to return false after returning true once.
+  void UnsafeResetForTesting();
+
+ private:
+  std::atomic<uint_fast8_t> flag_{0};
+  base::ThreadChecker set_thread_checker_;
+};
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_ATOMIC_FLAG_H_

Thirdparty/libcef/include/base/cef_atomic_ref_count.h

@@ -0,0 +1,111 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This is a low level implementation of atomic semantics for reference
+// counting.  Please use cef_ref_counted.h directly instead.
+//
+// The Chromium implementation includes annotations to avoid some false
+// positives when using data race detection tools. Annotations are not
+// currently supported by the CEF implementation.
+
+#ifndef CEF_INCLUDE_BASE_CEF_ATOMIC_REF_COUNT_H_
+#define CEF_INCLUDE_BASE_CEF_ATOMIC_REF_COUNT_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/atomic_ref_count.h"
+
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <atomic>
+
+namespace base {
+
+class AtomicRefCount {
+ public:
+  constexpr AtomicRefCount() : ref_count_(0) {}
+  explicit constexpr AtomicRefCount(int initial_value)
+      : ref_count_(initial_value) {}
+
+  // Increment a reference count.
+  // Returns the previous value of the count.
+  int Increment() { return Increment(1); }
+
+  // Increment a reference count by "increment", which must exceed 0.
+  // Returns the previous value of the count.
+  int Increment(int increment) {
+    return ref_count_.fetch_add(increment, std::memory_order_relaxed);
+  }
+
+  // Decrement a reference count, and return whether the result is non-zero.
+  // Insert barriers to ensure that state written before the reference count
+  // became zero will be visible to a thread that has just made the count zero.
+  bool Decrement() {
+    // TODO(jbroman): Technically this doesn't need to be an acquire operation
+    // unless the result is 1 (i.e., the ref count did indeed reach zero).
+    // However, there are toolchain issues that make that not work as well at
+    // present (notably TSAN doesn't like it).
+    return ref_count_.fetch_sub(1, std::memory_order_acq_rel) != 1;
+  }
+
+  // Return whether the reference count is one.  If the reference count is used
+  // in the conventional way, a refrerence count of 1 implies that the current
+  // thread owns the reference and no other thread shares it.  This call
+  // performs the test for a reference count of one, and performs the memory
+  // barrier needed for the owning thread to act on the object, knowing that it
+  // has exclusive access to the object.
+  bool IsOne() const { return ref_count_.load(std::memory_order_acquire) == 1; }
+
+  // Return whether the reference count is zero.  With conventional object
+  // referencing counting, the object will be destroyed, so the reference count
+  // should never be zero.  Hence this is generally used for a debug check.
+  bool IsZero() const {
+    return ref_count_.load(std::memory_order_acquire) == 0;
+  }
+
+  // Returns the current reference count (with no barriers). This is subtle, and
+  // should be used only for debugging.
+  int SubtleRefCountForDebug() const {
+    return ref_count_.load(std::memory_order_relaxed);
+  }
+
+ private:
+  std::atomic_int ref_count_;
+};
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_ATOMIC_REF_COUNT_H_

Thirdparty/libcef/include/base/cef_auto_reset.h

@@ -0,0 +1,89 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// base::AutoReset<> is useful for setting a variable to a new value only within
+// a particular scope. An base::AutoReset<> object resets a variable to its
+// original value upon destruction, making it an alternative to writing
+// "var = false;" or "var = old_val;" at all of a block's exit points.
+//
+// This should be obvious, but note that an base::AutoReset<> instance should
+// have a shorter lifetime than its scoped_variable, to prevent invalid memory
+// writes when the base::AutoReset<> object is destroyed.
+
+#ifndef CEF_INCLUDE_BASE_CEF_AUTO_RESET_H_
+#define CEF_INCLUDE_BASE_CEF_AUTO_RESET_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/auto_reset.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <utility>
+
+namespace base {
+
+template <typename T>
+class AutoReset {
+ public:
+  template <typename U>
+  AutoReset(T* scoped_variable, U&& new_value)
+      : scoped_variable_(scoped_variable),
+        original_value_(
+            std::exchange(*scoped_variable_, std::forward<U>(new_value))) {}
+
+  AutoReset(AutoReset&& other)
+      : scoped_variable_(std::exchange(other.scoped_variable_, nullptr)),
+        original_value_(std::move(other.original_value_)) {}
+
+  AutoReset& operator=(AutoReset&& rhs) {
+    scoped_variable_ = std::exchange(rhs.scoped_variable_, nullptr);
+    original_value_ = std::move(rhs.original_value_);
+    return *this;
+  }
+
+  ~AutoReset() {
+    if (scoped_variable_)
+      *scoped_variable_ = std::move(original_value_);
+  }
+
+ private:
+  T* scoped_variable_;
+  T original_value_;
+};
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_AUTO_RESET_H_

Thirdparty/libcef/include/base/cef_basictypes.h

@@ -0,0 +1,86 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_BASICTYPES_H_
+#define CEF_INCLUDE_BASE_CEF_BASICTYPES_H_
+#pragma once
+
+#include <limits.h>  // For UINT_MAX
+#include <stddef.h>  // For size_t
+
+#include "include/base/cef_build.h"
+
+// The NSPR system headers define 64-bit as |long| when possible, except on
+// Mac OS X.  In order to not have typedef mismatches, we do the same on LP64.
+//
+// On Mac OS X, |long long| is used for 64-bit types for compatibility with
+// <inttypes.h> format macros even in the LP64 model.
+#if defined(__LP64__) && !defined(OS_MAC) && !defined(OS_OPENBSD)
+typedef long int64;
+typedef unsigned long uint64;
+#else
+typedef long long int64;
+typedef unsigned long long uint64;
+#endif
+
+// TODO: Remove these type guards.  These are to avoid conflicts with
+// obsolete/protypes.h in the Gecko SDK.
+#ifndef _INT32
+#define _INT32
+typedef int int32;
+#endif
+
+// TODO: Remove these type guards.  These are to avoid conflicts with
+// obsolete/protypes.h in the Gecko SDK.
+#ifndef _UINT32
+#define _UINT32
+typedef unsigned int uint32;
+#endif
+
+#ifndef _INT16
+#define _INT16
+typedef short int16;
+#endif
+
+#ifndef _UINT16
+#define _UINT16
+typedef unsigned short uint16;
+#endif
+
+// UTF-16 character type.
+#ifndef char16
+#if defined(WCHAR_T_IS_UTF16)
+typedef wchar_t char16;
+#elif defined(WCHAR_T_IS_UTF32)
+typedef unsigned short char16;
+#endif
+#endif
+
+#endif  // CEF_INCLUDE_BASE_CEF_BASICTYPES_H_

Thirdparty/libcef/include/base/cef_bind.h

@@ -0,0 +1,352 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// -----------------------------------------------------------------------------
+// Usage documentation
+// -----------------------------------------------------------------------------
+//
+// Overview:
+// base::BindOnce() and base::BindRepeating() are helpers for creating
+// base::OnceCallback and base::RepeatingCallback objects respectively.
+//
+// For a runnable object of n-arity, the base::Bind*() family allows partial
+// application of the first m arguments. The remaining n - m arguments must be
+// passed when invoking the callback with Run().
+//
+//   // The first argument is bound at callback creation; the remaining
+//   // two must be passed when calling Run() on the callback object.
+//   base::OnceCallback<long(int, long)> cb = base::BindOnce(
+//       [](short x, int y, long z) { return x * y * z; }, 42);
+//
+// When binding to a method, the receiver object must also be specified at
+// callback creation time. When Run() is invoked, the method will be invoked on
+// the specified receiver object.
+//
+//   class C : public base::RefCounted<C> { void F(); };
+//   auto instance = base::MakeRefCounted<C>();
+//   auto cb = base::BindOnce(&C::F, instance);
+//   std::move(cb).Run();  // Identical to instance->F()
+//
+// See //docs/callback.md for the full documentation.
+//
+// -----------------------------------------------------------------------------
+// Implementation notes
+// -----------------------------------------------------------------------------
+//
+// If you're reading the implementation, before proceeding further, you should
+// read the top comment of base/internal/cef_bind_internal.h for a definition of
+// common terms and concepts.
+
+#ifndef CEF_INCLUDE_BASE_CEF_BIND_H_
+#define CEF_INCLUDE_BASE_CEF_BIND_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/bind.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <functional>
+#include <memory>
+#include <type_traits>
+#include <utility>
+
+#include "include/base/cef_build.h"
+#include "include/base/cef_compiler_specific.h"
+#include "include/base/cef_template_util.h"
+#include "include/base/internal/cef_bind_internal.h"
+
+#if defined(OS_APPLE) && !HAS_FEATURE(objc_arc)
+#include "include/base/internal/cef_scoped_block_mac.h"
+#endif
+
+namespace base {
+
+// Bind as OnceCallback.
+template <typename Functor, typename... Args>
+inline OnceCallback<internal::MakeUnboundRunType<Functor, Args...>> BindOnce(
+    Functor&& functor,
+    Args&&... args) {
+  static_assert(!internal::IsOnceCallback<std::decay_t<Functor>>() ||
+                    (std::is_rvalue_reference<Functor&&>() &&
+                     !std::is_const<std::remove_reference_t<Functor>>()),
+                "BindOnce requires non-const rvalue for OnceCallback binding."
+                " I.e.: base::BindOnce(std::move(callback)).");
+  static_assert(
+      conjunction<
+          internal::AssertBindArgIsNotBasePassed<std::decay_t<Args>>...>::value,
+      "Use std::move() instead of base::Passed() with base::BindOnce()");
+
+  return internal::BindImpl<OnceCallback>(std::forward<Functor>(functor),
+                                          std::forward<Args>(args)...);
+}
+
+// Bind as RepeatingCallback.
+template <typename Functor, typename... Args>
+inline RepeatingCallback<internal::MakeUnboundRunType<Functor, Args...>>
+BindRepeating(Functor&& functor, Args&&... args) {
+  static_assert(
+      !internal::IsOnceCallback<std::decay_t<Functor>>(),
+      "BindRepeating cannot bind OnceCallback. Use BindOnce with std::move().");
+
+  return internal::BindImpl<RepeatingCallback>(std::forward<Functor>(functor),
+                                               std::forward<Args>(args)...);
+}
+
+// Special cases for binding to a base::Callback without extra bound arguments.
+// We CHECK() the validity of callback to guard against null pointers
+// accidentally ending up in posted tasks, causing hard-to-debug crashes.
+template <typename Signature>
+OnceCallback<Signature> BindOnce(OnceCallback<Signature> callback) {
+  CHECK(callback);
+  return callback;
+}
+
+template <typename Signature>
+OnceCallback<Signature> BindOnce(RepeatingCallback<Signature> callback) {
+  CHECK(callback);
+  return callback;
+}
+
+template <typename Signature>
+RepeatingCallback<Signature> BindRepeating(
+    RepeatingCallback<Signature> callback) {
+  CHECK(callback);
+  return callback;
+}
+
+// Unretained() allows binding a non-refcounted class, and to disable
+// refcounting on arguments that are refcounted objects.
+//
+// EXAMPLE OF Unretained():
+//
+//   class Foo {
+//    public:
+//     void func() { cout << "Foo:f" << endl; }
+//   };
+//
+//   // In some function somewhere.
+//   Foo foo;
+//   OnceClosure foo_callback =
+//       BindOnce(&Foo::func, Unretained(&foo));
+//   std::move(foo_callback).Run();  // Prints "Foo:f".
+//
+// Without the Unretained() wrapper on |&foo|, the above call would fail
+// to compile because Foo does not support the AddRef() and Release() methods.
+template <typename T>
+inline internal::UnretainedWrapper<T> Unretained(T* o) {
+  return internal::UnretainedWrapper<T>(o);
+}
+
+// RetainedRef() accepts a ref counted object and retains a reference to it.
+// When the callback is called, the object is passed as a raw pointer.
+//
+// EXAMPLE OF RetainedRef():
+//
+//    void foo(RefCountedBytes* bytes) {}
+//
+//    scoped_refptr<RefCountedBytes> bytes = ...;
+//    OnceClosure callback = BindOnce(&foo, base::RetainedRef(bytes));
+//    std::move(callback).Run();
+//
+// Without RetainedRef, the scoped_refptr would try to implicitly convert to
+// a raw pointer and fail compilation:
+//
+//    OnceClosure callback = BindOnce(&foo, bytes); // ERROR!
+template <typename T>
+inline internal::RetainedRefWrapper<T> RetainedRef(T* o) {
+  return internal::RetainedRefWrapper<T>(o);
+}
+template <typename T>
+inline internal::RetainedRefWrapper<T> RetainedRef(scoped_refptr<T> o) {
+  return internal::RetainedRefWrapper<T>(std::move(o));
+}
+
+// Owned() transfers ownership of an object to the callback resulting from
+// bind; the object will be deleted when the callback is deleted.
+//
+// EXAMPLE OF Owned():
+//
+//   void foo(int* arg) { cout << *arg << endl }
+//
+//   int* pn = new int(1);
+//   RepeatingClosure foo_callback = BindRepeating(&foo, Owned(pn));
+//
+//   foo_callback.Run();  // Prints "1"
+//   foo_callback.Run();  // Prints "1"
+//   *pn = 2;
+//   foo_callback.Run();  // Prints "2"
+//
+//   foo_callback.Reset();  // |pn| is deleted.  Also will happen when
+//                          // |foo_callback| goes out of scope.
+//
+// Without Owned(), someone would have to know to delete |pn| when the last
+// reference to the callback is deleted.
+template <typename T>
+inline internal::OwnedWrapper<T> Owned(T* o) {
+  return internal::OwnedWrapper<T>(o);
+}
+
+template <typename T, typename Deleter>
+inline internal::OwnedWrapper<T, Deleter> Owned(
+    std::unique_ptr<T, Deleter>&& ptr) {
+  return internal::OwnedWrapper<T, Deleter>(std::move(ptr));
+}
+
+// OwnedRef() stores an object in the callback resulting from
+// bind and passes a reference to the object to the bound function.
+//
+// EXAMPLE OF OwnedRef():
+//
+//   void foo(int& arg) { cout << ++arg << endl }
+//
+//   int counter = 0;
+//   RepeatingClosure foo_callback = BindRepeating(&foo, OwnedRef(counter));
+//
+//   foo_callback.Run();  // Prints "1"
+//   foo_callback.Run();  // Prints "2"
+//   foo_callback.Run();  // Prints "3"
+//
+//   cout << counter;     // Prints "0", OwnedRef creates a copy of counter.
+//
+//  Supports OnceCallbacks as well, useful to pass placeholder arguments:
+//
+//   void bar(int& ignore, const std::string& s) { cout << s << endl }
+//
+//   OnceClosure bar_callback = BindOnce(&bar, OwnedRef(0), "Hello");
+//
+//   std::move(bar_callback).Run(); // Prints "Hello"
+//
+// Without OwnedRef() it would not be possible to pass a mutable reference to an
+// object owned by the callback.
+template <typename T>
+internal::OwnedRefWrapper<std::decay_t<T>> OwnedRef(T&& t) {
+  return internal::OwnedRefWrapper<std::decay_t<T>>(std::forward<T>(t));
+}
+
+// Passed() is for transferring movable-but-not-copyable types (eg. unique_ptr)
+// through a RepeatingCallback. Logically, this signifies a destructive transfer
+// of the state of the argument into the target function. Invoking
+// RepeatingCallback::Run() twice on a callback that was created with a Passed()
+// argument will CHECK() because the first invocation would have already
+// transferred ownership to the target function.
+//
+// Note that Passed() is not necessary with BindOnce(), as std::move() does the
+// same thing. Avoid Passed() in favor of std::move() with BindOnce().
+//
+// EXAMPLE OF Passed():
+//
+//   void TakesOwnership(std::unique_ptr<Foo> arg) { }
+//   std::unique_ptr<Foo> CreateFoo() { return std::make_unique<Foo>();
+//   }
+//
+//   auto f = std::make_unique<Foo>();
+//
+//   // |cb| is given ownership of Foo(). |f| is now NULL.
+//   // You can use std::move(f) in place of &f, but it's more verbose.
+//   RepeatingClosure cb = BindRepeating(&TakesOwnership, Passed(&f));
+//
+//   // Run was never called so |cb| still owns Foo() and deletes
+//   // it on Reset().
+//   cb.Reset();
+//
+//   // |cb| is given a new Foo created by CreateFoo().
+//   cb = BindRepeating(&TakesOwnership, Passed(CreateFoo()));
+//
+//   // |arg| in TakesOwnership() is given ownership of Foo(). |cb|
+//   // no longer owns Foo() and, if reset, would not delete Foo().
+//   cb.Run();  // Foo() is now transferred to |arg| and deleted.
+//   cb.Run();  // This CHECK()s since Foo() already been used once.
+//
+// We offer 2 syntaxes for calling Passed(). The first takes an rvalue and is
+// best suited for use with the return value of a function or other temporary
+// rvalues. The second takes a pointer to the scoper and is just syntactic sugar
+// to avoid having to write Passed(std::move(scoper)).
+//
+// Both versions of Passed() prevent T from being an lvalue reference. The first
+// via use of enable_if, and the second takes a T* which will not bind to T&.
+template <typename T,
+          std::enable_if_t<!std::is_lvalue_reference<T>::value>* = nullptr>
+inline internal::PassedWrapper<T> Passed(T&& scoper) {
+  return internal::PassedWrapper<T>(std::move(scoper));
+}
+template <typename T>
+inline internal::PassedWrapper<T> Passed(T* scoper) {
+  return internal::PassedWrapper<T>(std::move(*scoper));
+}
+
+// IgnoreResult() is used to adapt a function or callback with a return type to
+// one with a void return. This is most useful if you have a function with,
+// say, a pesky ignorable bool return that you want to use with PostTask or
+// something else that expect a callback with a void return.
+//
+// EXAMPLE OF IgnoreResult():
+//
+//   int DoSomething(int arg) { cout << arg << endl; }
+//
+//   // Assign to a callback with a void return type.
+//   OnceCallback<void(int)> cb = BindOnce(IgnoreResult(&DoSomething));
+//   std::move(cb).Run(1);  // Prints "1".
+//
+//   // Prints "2" on |ml|.
+//   ml->PostTask(FROM_HERE, BindOnce(IgnoreResult(&DoSomething), 2);
+template <typename T>
+inline internal::IgnoreResultHelper<T> IgnoreResult(T data) {
+  return internal::IgnoreResultHelper<T>(std::move(data));
+}
+
+#if defined(OS_APPLE) && !HAS_FEATURE(objc_arc)
+
+// RetainBlock() is used to adapt an Objective-C block when Automated Reference
+// Counting (ARC) is disabled. This is unnecessary when ARC is enabled, as the
+// BindOnce and BindRepeating already support blocks then.
+//
+// EXAMPLE OF RetainBlock():
+//
+//   // Wrap the block and bind it to a callback.
+//   OnceCallback<void(int)> cb =
+//       BindOnce(RetainBlock(^(int n) { NSLog(@"%d", n); }));
+//   std::move(cb).Run(1);  // Logs "1".
+template <typename R, typename... Args>
+base::mac::ScopedBlock<R (^)(Args...)> RetainBlock(R (^block)(Args...)) {
+  return base::mac::ScopedBlock<R (^)(Args...)>(block,
+                                                base::scoped_policy::RETAIN);
+}
+
+#endif  // defined(OS_APPLE) && !HAS_FEATURE(objc_arc)
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_BIND_H_

Thirdparty/libcef/include/base/cef_build.h

@@ -0,0 +1,259 @@
+// Copyright (c) 2011 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This file adds defines about the platform we're currently building on.
+//
+//  Operating System:
+//    OS_AIX / OS_ANDROID / OS_ASMJS / OS_FREEBSD / OS_FUCHSIA / OS_IOS /
+//    OS_LINUX / OS_MAC / OS_NACL (SFI or NONSFI) / OS_NETBSD / OS_OPENBSD /
+//    OS_QNX / OS_SOLARIS / OS_WIN
+//  Operating System family:
+//    OS_APPLE: IOS or MAC
+//    OS_BSD: FREEBSD or NETBSD or OPENBSD
+//    OS_POSIX: AIX or ANDROID or ASMJS or CHROMEOS or FREEBSD or IOS or LINUX
+//              or MAC or NACL or NETBSD or OPENBSD or QNX or SOLARIS
+//
+//  /!\ Note: OS_CHROMEOS is set by the build system, not this file
+//
+//  Compiler:
+//    COMPILER_MSVC / COMPILER_GCC
+//
+//  Processor:
+//    ARCH_CPU_ARM64 / ARCH_CPU_ARMEL / ARCH_CPU_MIPS / ARCH_CPU_MIPS64 /
+//    ARCH_CPU_MIPS64EL / ARCH_CPU_MIPSEL / ARCH_CPU_PPC64 / ARCH_CPU_S390 /
+//    ARCH_CPU_S390X / ARCH_CPU_X86 / ARCH_CPU_X86_64
+//  Processor family:
+//    ARCH_CPU_ARM_FAMILY: ARMEL or ARM64
+//    ARCH_CPU_MIPS_FAMILY: MIPS64EL or MIPSEL or MIPS64 or MIPS
+//    ARCH_CPU_PPC64_FAMILY: PPC64
+//    ARCH_CPU_S390_FAMILY: S390 or S390X
+//    ARCH_CPU_X86_FAMILY: X86 or X86_64
+//  Processor features:
+//    ARCH_CPU_31_BITS / ARCH_CPU_32_BITS / ARCH_CPU_64_BITS
+//    ARCH_CPU_BIG_ENDIAN / ARCH_CPU_LITTLE_ENDIAN
+
+#ifndef CEF_INCLUDE_BASE_CEF_BUILD_H_
+#define CEF_INCLUDE_BASE_CEF_BUILD_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "build/build_config.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+// A set of macros to use for platform detection.
+#if defined(ANDROID)
+#define OS_ANDROID 1
+#elif defined(__APPLE__)
+// Only include TargetConditionals after testing ANDROID as some Android builds
+// on the Mac have this header available and it's not needed unless the target
+// is really an Apple platform.
+#include <TargetConditionals.h>
+#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+#define OS_IOS 1
+#else
+#define OS_MAC 1
+// For backwards compatibility.
+#define OS_MACOSX 1
+#endif  // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+#elif defined(__linux__)
+#if !defined(OS_CHROMEOS)
+// Do not define OS_LINUX on Chrome OS build.
+// The OS_CHROMEOS macro is defined in GN.
+#define OS_LINUX 1
+#endif  // !defined(OS_CHROMEOS)
+// Include a system header to pull in features.h for glibc/uclibc macros.
+#include <unistd.h>
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
+// We really are using glibc, not uClibc pretending to be glibc.
+#define LIBC_GLIBC 1
+#endif
+#elif defined(_WIN32)
+#define OS_WIN 1
+#elif defined(__Fuchsia__)
+#define OS_FUCHSIA 1
+#elif defined(__FreeBSD__)
+#define OS_FREEBSD 1
+#elif defined(__NetBSD__)
+#define OS_NETBSD 1
+#elif defined(__OpenBSD__)
+#define OS_OPENBSD 1
+#elif defined(__sun)
+#define OS_SOLARIS 1
+#elif defined(__QNXNTO__)
+#define OS_QNX 1
+#elif defined(_AIX)
+#define OS_AIX 1
+#elif defined(__asmjs__) || defined(__wasm__)
+#define OS_ASMJS 1
+#else
+#error Please add support for your platform in include/base/cef_build.h
+#endif
+// NOTE: Adding a new port? Please follow
+// https://chromium.googlesource.com/chromium/src/+/master/docs/new_port_policy.md
+
+#if defined(OS_MAC) || defined(OS_IOS)
+#define OS_APPLE 1
+#endif
+
+// For access to standard BSD features, use OS_BSD instead of a
+// more specific macro.
+#if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD)
+#define OS_BSD 1
+#endif
+
+// For access to standard POSIXish features, use OS_POSIX instead of a
+// more specific macro.
+#if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_ASMJS) ||  \
+    defined(OS_FREEBSD) || defined(OS_IOS) || defined(OS_LINUX) ||  \
+    defined(OS_CHROMEOS) || defined(OS_MAC) || defined(OS_NACL) ||  \
+    defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_QNX) || \
+    defined(OS_SOLARIS)
+#define OS_POSIX 1
+#endif
+
+// Compiler detection. Note: clang masquerades as GCC on POSIX and as MSVC on
+// Windows.
+#if defined(__GNUC__)
+#define COMPILER_GCC 1
+#elif defined(_MSC_VER)
+#define COMPILER_MSVC 1
+#else
+#error Please add support for your compiler in build/build_config.h
+#endif
+
+// Processor architecture detection.  For more info on what's defined, see:
+//   http://msdn.microsoft.com/en-us/library/b0084kay.aspx
+//   http://www.agner.org/optimize/calling_conventions.pdf
+//   or with gcc, run: "echo | gcc -E -dM -"
+#if defined(_M_X64) || defined(__x86_64__)
+#define ARCH_CPU_X86_FAMILY 1
+#define ARCH_CPU_X86_64 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#elif defined(_M_IX86) || defined(__i386__)
+#define ARCH_CPU_X86_FAMILY 1
+#define ARCH_CPU_X86 1
+#define ARCH_CPU_32_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#elif defined(__s390x__)
+#define ARCH_CPU_S390_FAMILY 1
+#define ARCH_CPU_S390X 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_BIG_ENDIAN 1
+#elif defined(__s390__)
+#define ARCH_CPU_S390_FAMILY 1
+#define ARCH_CPU_S390 1
+#define ARCH_CPU_31_BITS 1
+#define ARCH_CPU_BIG_ENDIAN 1
+#elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__)
+#define ARCH_CPU_PPC64_FAMILY 1
+#define ARCH_CPU_PPC64 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_BIG_ENDIAN 1
+#elif defined(__PPC64__)
+#define ARCH_CPU_PPC64_FAMILY 1
+#define ARCH_CPU_PPC64 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#elif defined(__ARMEL__)
+#define ARCH_CPU_ARM_FAMILY 1
+#define ARCH_CPU_ARMEL 1
+#define ARCH_CPU_32_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#elif defined(__aarch64__) || defined(_M_ARM64)
+#define ARCH_CPU_ARM_FAMILY 1
+#define ARCH_CPU_ARM64 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#elif defined(__pnacl__) || defined(__asmjs__) || defined(__wasm__)
+#define ARCH_CPU_32_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#elif defined(__MIPSEL__)
+#if defined(__LP64__)
+#define ARCH_CPU_MIPS_FAMILY 1
+#define ARCH_CPU_MIPS64EL 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#else
+#define ARCH_CPU_MIPS_FAMILY 1
+#define ARCH_CPU_MIPSEL 1
+#define ARCH_CPU_32_BITS 1
+#define ARCH_CPU_LITTLE_ENDIAN 1
+#endif
+#elif defined(__MIPSEB__)
+#if defined(__LP64__)
+#define ARCH_CPU_MIPS_FAMILY 1
+#define ARCH_CPU_MIPS64 1
+#define ARCH_CPU_64_BITS 1
+#define ARCH_CPU_BIG_ENDIAN 1
+#else
+#define ARCH_CPU_MIPS_FAMILY 1
+#define ARCH_CPU_MIPS 1
+#define ARCH_CPU_32_BITS 1
+#define ARCH_CPU_BIG_ENDIAN 1
+#endif
+#else
+#error Please add support for your architecture in include/base/cef_build.h
+#endif
+
+// Type detection for wchar_t.
+#if defined(OS_WIN)
+#define WCHAR_T_IS_UTF16
+#elif defined(OS_FUCHSIA)
+#define WCHAR_T_IS_UTF32
+#elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
+    (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff)
+#define WCHAR_T_IS_UTF32
+#elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
+    (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff)
+// On Posix, we'll detect short wchar_t, but projects aren't guaranteed to
+// compile in this mode (in particular, Chrome doesn't). This is intended for
+// other projects using base who manage their own dependencies and make sure
+// short wchar works for them.
+#define WCHAR_T_IS_UTF16
+#else
+#error Please add support for your compiler in include/base/cef_build.h
+#endif
+
+#if defined(OS_ANDROID)
+// The compiler thinks std::string::const_iterator and "const char*" are
+// equivalent types.
+#define STD_STRING_ITERATOR_IS_CHAR_POINTER
+// The compiler thinks std::u16string::const_iterator and "char16*" are
+// equivalent types.
+#define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER
+#endif
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_BUILD_H_

Thirdparty/libcef/include/base/cef_callback.h

@@ -0,0 +1,251 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// -----------------------------------------------------------------------------
+// Usage documentation
+// -----------------------------------------------------------------------------
+//
+// Overview:
+// A callback is similar in concept to a function pointer: it wraps a runnable
+// object such as a function, method, lambda, or even another callback, allowing
+// the runnable object to be invoked later via the callback object.
+//
+// Unlike function pointers, callbacks are created with base::BindOnce() or
+// base::BindRepeating() and support partial function application.
+//
+// A base::OnceCallback may be Run() at most once; a base::RepeatingCallback may
+// be Run() any number of times. |is_null()| is guaranteed to return true for a
+// moved-from callback.
+//
+//   // The lambda takes two arguments, but the first argument |x| is bound at
+//   // callback creation.
+//   base::OnceCallback<int(int)> cb = base::BindOnce([] (int x, int y) {
+//     return x + y;
+//   }, 1);
+//   // Run() only needs the remaining unbound argument |y|.
+//   printf("1 + 2 = %d\n", std::move(cb).Run(2));  // Prints 3
+//   printf("cb is null? %s\n",
+//          cb.is_null() ? "true" : "false");  // Prints true
+//   std::move(cb).Run(2);  // Crashes since |cb| has already run.
+//
+// Callbacks also support cancellation. A common use is binding the receiver
+// object as a WeakPtr<T>. If that weak pointer is invalidated, calling Run()
+// will be a no-op. Note that |IsCancelled()| and |is_null()| are distinct:
+// simply cancelling a callback will not also make it null.
+//
+// See https://chromium.googlesource.com/chromium/src/+/HEAD/docs/callback.md
+// for the full documentation.
+
+#ifndef CEF_INCLUDE_BASE_CEF_CALLBACK_H_
+#define CEF_INCLUDE_BASE_CEF_CALLBACK_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/callback.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <stddef.h>
+
+#include "include/base/cef_bind.h"
+#include "include/base/cef_callback_forward.h"
+#include "include/base/cef_logging.h"
+#include "include/base/internal/cef_callback_internal.h"
+
+namespace base {
+
+template <typename R, typename... Args>
+class OnceCallback<R(Args...)> : public internal::CallbackBase {
+ public:
+  using ResultType = R;
+  using RunType = R(Args...);
+  using PolymorphicInvoke = R (*)(internal::BindStateBase*,
+                                  internal::PassingType<Args>...);
+
+  constexpr OnceCallback() = default;
+  OnceCallback(std::nullptr_t) = delete;
+
+  explicit OnceCallback(internal::BindStateBase* bind_state)
+      : internal::CallbackBase(bind_state) {}
+
+  OnceCallback(const OnceCallback&) = delete;
+  OnceCallback& operator=(const OnceCallback&) = delete;
+
+  OnceCallback(OnceCallback&&) noexcept = default;
+  OnceCallback& operator=(OnceCallback&&) noexcept = default;
+
+  OnceCallback(RepeatingCallback<RunType> other)
+      : internal::CallbackBase(std::move(other)) {}
+
+  OnceCallback& operator=(RepeatingCallback<RunType> other) {
+    static_cast<internal::CallbackBase&>(*this) = std::move(other);
+    return *this;
+  }
+
+  R Run(Args... args) const& {
+    static_assert(!sizeof(*this),
+                  "OnceCallback::Run() may only be invoked on a non-const "
+                  "rvalue, i.e. std::move(callback).Run().");
+    NOTREACHED();
+  }
+
+  R Run(Args... args) && {
+    // Move the callback instance into a local variable before the invocation,
+    // that ensures the internal state is cleared after the invocation.
+    // It's not safe to touch |this| after the invocation, since running the
+    // bound function may destroy |this|.
+    OnceCallback cb = std::move(*this);
+    PolymorphicInvoke f =
+        reinterpret_cast<PolymorphicInvoke>(cb.polymorphic_invoke());
+    return f(cb.bind_state_.get(), std::forward<Args>(args)...);
+  }
+
+  // Then() returns a new OnceCallback that receives the same arguments as
+  // |this|, and with the return type of |then|. The returned callback will:
+  // 1) Run the functor currently bound to |this| callback.
+  // 2) Run the |then| callback with the result from step 1 as its single
+  //    argument.
+  // 3) Return the value from running the |then| callback.
+  //
+  // Since this method generates a callback that is a replacement for `this`,
+  // `this` will be consumed and reset to a null callback to ensure the
+  // originally-bound functor can be run at most once.
+  template <typename ThenR, typename... ThenArgs>
+  OnceCallback<ThenR(Args...)> Then(OnceCallback<ThenR(ThenArgs...)> then) && {
+    CHECK(then);
+    return BindOnce(
+        internal::ThenHelper<
+            OnceCallback, OnceCallback<ThenR(ThenArgs...)>>::CreateTrampoline(),
+        std::move(*this), std::move(then));
+  }
+
+  // This overload is required; even though RepeatingCallback is implicitly
+  // convertible to OnceCallback, that conversion will not used when matching
+  // for template argument deduction.
+  template <typename ThenR, typename... ThenArgs>
+  OnceCallback<ThenR(Args...)> Then(
+      RepeatingCallback<ThenR(ThenArgs...)> then) && {
+    CHECK(then);
+    return BindOnce(
+        internal::ThenHelper<
+            OnceCallback,
+            RepeatingCallback<ThenR(ThenArgs...)>>::CreateTrampoline(),
+        std::move(*this), std::move(then));
+  }
+};
+
+template <typename R, typename... Args>
+class RepeatingCallback<R(Args...)> : public internal::CallbackBaseCopyable {
+ public:
+  using ResultType = R;
+  using RunType = R(Args...);
+  using PolymorphicInvoke = R (*)(internal::BindStateBase*,
+                                  internal::PassingType<Args>...);
+
+  constexpr RepeatingCallback() = default;
+  RepeatingCallback(std::nullptr_t) = delete;
+
+  explicit RepeatingCallback(internal::BindStateBase* bind_state)
+      : internal::CallbackBaseCopyable(bind_state) {}
+
+  // Copyable and movable.
+  RepeatingCallback(const RepeatingCallback&) = default;
+  RepeatingCallback& operator=(const RepeatingCallback&) = default;
+  RepeatingCallback(RepeatingCallback&&) noexcept = default;
+  RepeatingCallback& operator=(RepeatingCallback&&) noexcept = default;
+
+  bool operator==(const RepeatingCallback& other) const {
+    return EqualsInternal(other);
+  }
+
+  bool operator!=(const RepeatingCallback& other) const {
+    return !operator==(other);
+  }
+
+  R Run(Args... args) const& {
+    PolymorphicInvoke f =
+        reinterpret_cast<PolymorphicInvoke>(this->polymorphic_invoke());
+    return f(this->bind_state_.get(), std::forward<Args>(args)...);
+  }
+
+  R Run(Args... args) && {
+    // Move the callback instance into a local variable before the invocation,
+    // that ensures the internal state is cleared after the invocation.
+    // It's not safe to touch |this| after the invocation, since running the
+    // bound function may destroy |this|.
+    RepeatingCallback cb = std::move(*this);
+    PolymorphicInvoke f =
+        reinterpret_cast<PolymorphicInvoke>(cb.polymorphic_invoke());
+    return f(std::move(cb).bind_state_.get(), std::forward<Args>(args)...);
+  }
+
+  // Then() returns a new RepeatingCallback that receives the same arguments as
+  // |this|, and with the return type of |then|. The
+  // returned callback will:
+  // 1) Run the functor currently bound to |this| callback.
+  // 2) Run the |then| callback with the result from step 1 as its single
+  //    argument.
+  // 3) Return the value from running the |then| callback.
+  //
+  // If called on an rvalue (e.g. std::move(cb).Then(...)), this method
+  // generates a callback that is a replacement for `this`. Therefore, `this`
+  // will be consumed and reset to a null callback to ensure the
+  // originally-bound functor will be run at most once.
+  template <typename ThenR, typename... ThenArgs>
+  RepeatingCallback<ThenR(Args...)> Then(
+      RepeatingCallback<ThenR(ThenArgs...)> then) const& {
+    CHECK(then);
+    return BindRepeating(
+        internal::ThenHelper<
+            RepeatingCallback,
+            RepeatingCallback<ThenR(ThenArgs...)>>::CreateTrampoline(),
+        *this, std::move(then));
+  }
+
+  template <typename ThenR, typename... ThenArgs>
+  RepeatingCallback<ThenR(Args...)> Then(
+      RepeatingCallback<ThenR(ThenArgs...)> then) && {
+    CHECK(then);
+    return BindRepeating(
+        internal::ThenHelper<
+            RepeatingCallback,
+            RepeatingCallback<ThenR(ThenArgs...)>>::CreateTrampoline(),
+        std::move(*this), std::move(then));
+  }
+};
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_CALLBACK_H_

Thirdparty/libcef/include/base/cef_callback_forward.h

@@ -0,0 +1,61 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef INCLUDE_BASE_CEF_CALLBACK_FORWARD_H_
+#define INCLUDE_BASE_CEF_CALLBACK_FORWARD_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/callback_forward.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+namespace base {
+
+template <typename Signature>
+class OnceCallback;
+
+template <typename Signature>
+class RepeatingCallback;
+
+// Syntactic sugar to make OnceClosure<void()> and RepeatingClosure<void()>
+// easier to declare since they will be used in a lot of APIs with delayed
+// execution.
+using OnceClosure = OnceCallback<void()>;
+using RepeatingClosure = RepeatingCallback<void()>;
+
+}  // namespace base
+
+#endif  // !!USING_CHROMIUM_INCLUDES
+
+#endif  // INCLUDE_BASE_CEF_CALLBACK_FORWARD_H_

Thirdparty/libcef/include/base/cef_callback_helpers.h

@@ -0,0 +1,241 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This defines helpful methods for dealing with Callbacks.  Because Callbacks
+// are implemented using templates, with a class per callback signature, adding
+// methods to Callback<> itself is unattractive (lots of extra code gets
+// generated).  Instead, consider adding methods here.
+
+#ifndef CEF_INCLUDE_BASE_CEF_CALLBACK_HELPERS_H_
+#define CEF_INCLUDE_BASE_CEF_CALLBACK_HELPERS_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/callback_helpers.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <atomic>
+#include <memory>
+#include <type_traits>
+#include <utility>
+
+#include "include/base/cef_bind.h"
+#include "include/base/cef_callback.h"
+#include "include/base/cef_compiler_specific.h"
+#include "include/base/cef_logging.h"
+
+namespace base {
+
+namespace internal {
+
+template <typename T>
+struct IsBaseCallbackImpl : std::false_type {};
+
+template <typename R, typename... Args>
+struct IsBaseCallbackImpl<OnceCallback<R(Args...)>> : std::true_type {};
+
+template <typename R, typename... Args>
+struct IsBaseCallbackImpl<RepeatingCallback<R(Args...)>> : std::true_type {};
+
+template <typename T>
+struct IsOnceCallbackImpl : std::false_type {};
+
+template <typename R, typename... Args>
+struct IsOnceCallbackImpl<OnceCallback<R(Args...)>> : std::true_type {};
+
+}  // namespace internal
+
+// IsBaseCallback<T>::value is true when T is any of the Closure or Callback
+// family of types.
+template <typename T>
+using IsBaseCallback = internal::IsBaseCallbackImpl<std::decay_t<T>>;
+
+// IsOnceCallback<T>::value is true when T is a OnceClosure or OnceCallback
+// type.
+template <typename T>
+using IsOnceCallback = internal::IsOnceCallbackImpl<std::decay_t<T>>;
+
+// SFINAE friendly enabler allowing to overload methods for both Repeating and
+// OnceCallbacks.
+//
+// Usage:
+// template <template <typename> class CallbackType,
+//           ... other template args ...,
+//           typename = EnableIfIsBaseCallback<CallbackType>>
+// void DoStuff(CallbackType<...> cb, ...);
+template <template <typename> class CallbackType>
+using EnableIfIsBaseCallback =
+    std::enable_if_t<IsBaseCallback<CallbackType<void()>>::value>;
+
+namespace internal {
+
+template <typename... Args>
+class OnceCallbackHolder final {
+ public:
+  OnceCallbackHolder(OnceCallback<void(Args...)> callback,
+                     bool ignore_extra_runs)
+      : callback_(std::move(callback)), ignore_extra_runs_(ignore_extra_runs) {
+    DCHECK(callback_);
+  }
+  OnceCallbackHolder(const OnceCallbackHolder&) = delete;
+  OnceCallbackHolder& operator=(const OnceCallbackHolder&) = delete;
+
+  void Run(Args... args) {
+    if (has_run_.exchange(true)) {
+      CHECK(ignore_extra_runs_) << "Both OnceCallbacks returned by "
+                                   "base::SplitOnceCallback() were run. "
+                                   "At most one of the pair should be run.";
+      return;
+    }
+    DCHECK(callback_);
+    std::move(callback_).Run(std::forward<Args>(args)...);
+  }
+
+ private:
+  volatile std::atomic_bool has_run_{false};
+  base::OnceCallback<void(Args...)> callback_;
+  const bool ignore_extra_runs_;
+};
+
+}  // namespace internal
+
+// Wraps the given OnceCallback into a RepeatingCallback that relays its
+// invocation to the original OnceCallback on the first invocation. The
+// following invocations are just ignored.
+//
+// Note that this deliberately subverts the Once/Repeating paradigm of Callbacks
+// but helps ease the migration from old-style Callbacks. Avoid if possible; use
+// if necessary for migration. TODO(tzik): Remove it. https://crbug.com/730593
+template <typename... Args>
+RepeatingCallback<void(Args...)> AdaptCallbackForRepeating(
+    OnceCallback<void(Args...)> callback) {
+  using Helper = internal::OnceCallbackHolder<Args...>;
+  return base::BindRepeating(
+      &Helper::Run, std::make_unique<Helper>(std::move(callback),
+                                             /*ignore_extra_runs=*/true));
+}
+
+// Wraps the given OnceCallback and returns two OnceCallbacks with an identical
+// signature. On first invokation of either returned callbacks, the original
+// callback is invoked. Invoking the remaining callback results in a crash.
+template <typename... Args>
+std::pair<OnceCallback<void(Args...)>, OnceCallback<void(Args...)>>
+SplitOnceCallback(OnceCallback<void(Args...)> callback) {
+  using Helper = internal::OnceCallbackHolder<Args...>;
+  auto wrapped_once = base::BindRepeating(
+      &Helper::Run, std::make_unique<Helper>(std::move(callback),
+                                             /*ignore_extra_runs=*/false));
+  return std::make_pair(wrapped_once, wrapped_once);
+}
+
+// ScopedClosureRunner is akin to std::unique_ptr<> for Closures. It ensures
+// that the Closure is executed no matter how the current scope exits.
+// If you are looking for "ScopedCallback", "CallbackRunner", or
+// "CallbackScoper" this is the class you want.
+class ScopedClosureRunner {
+ public:
+  ScopedClosureRunner();
+  explicit ScopedClosureRunner(OnceClosure closure);
+  ScopedClosureRunner(ScopedClosureRunner&& other);
+  // Runs the current closure if it's set, then replaces it with the closure
+  // from |other|. This is akin to how unique_ptr frees the contained pointer in
+  // its move assignment operator. If you need to explicitly avoid running any
+  // current closure, use ReplaceClosure().
+  ScopedClosureRunner& operator=(ScopedClosureRunner&& other);
+  ~ScopedClosureRunner();
+
+  explicit operator bool() const { return !!closure_; }
+
+  // Calls the current closure and resets it, so it wont be called again.
+  void RunAndReset();
+
+  // Replaces closure with the new one releasing the old one without calling it.
+  void ReplaceClosure(OnceClosure closure);
+
+  // Releases the Closure without calling.
+  OnceClosure Release() WARN_UNUSED_RESULT;
+
+ private:
+  OnceClosure closure_;
+};
+
+// Creates a null callback.
+class NullCallback {
+ public:
+  template <typename R, typename... Args>
+  operator RepeatingCallback<R(Args...)>() const {
+    return RepeatingCallback<R(Args...)>();
+  }
+  template <typename R, typename... Args>
+  operator OnceCallback<R(Args...)>() const {
+    return OnceCallback<R(Args...)>();
+  }
+};
+
+// Creates a callback that does nothing when called.
+class DoNothing {
+ public:
+  template <typename... Args>
+  operator RepeatingCallback<void(Args...)>() const {
+    return Repeatedly<Args...>();
+  }
+  template <typename... Args>
+  operator OnceCallback<void(Args...)>() const {
+    return Once<Args...>();
+  }
+  // Explicit way of specifying a specific callback type when the compiler can't
+  // deduce it.
+  template <typename... Args>
+  static RepeatingCallback<void(Args...)> Repeatedly() {
+    return BindRepeating([](Args... args) {});
+  }
+  template <typename... Args>
+  static OnceCallback<void(Args...)> Once() {
+    return BindOnce([](Args... args) {});
+  }
+};
+
+// Useful for creating a Closure that will delete a pointer when invoked. Only
+// use this when necessary. In most cases MessageLoop::DeleteSoon() is a better
+// fit.
+template <typename T>
+void DeletePointer(T* obj) {
+  delete obj;
+}
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_CALLBACK_HELPERS_H_

Thirdparty/libcef/include/base/cef_callback_list.h

@@ -0,0 +1,395 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2013
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// OVERVIEW:
+//
+// A container for a list of callbacks. Provides callers the ability to manually
+// or automatically unregister callbacks at any time, including during callback
+// notification.
+//
+// TYPICAL USAGE:
+//
+// class MyWidget {
+//  public:
+//   using CallbackList = base::RepeatingCallbackList<void(const Foo&)>;
+//
+//   // Registers |cb| to be called whenever NotifyFoo() is executed.
+//   CallbackListSubscription RegisterCallback(CallbackList::CallbackType cb) {
+//     return callback_list_.Add(std::move(cb));
+//   }
+//
+//  private:
+//   // Calls all registered callbacks, with |foo| as the supplied arg.
+//   void NotifyFoo(const Foo& foo) {
+//     callback_list_.Notify(foo);
+//   }
+//
+//   CallbackList callback_list_;
+// };
+//
+//
+// class MyWidgetListener {
+//  private:
+//   void OnFoo(const Foo& foo) {
+//     // Called whenever MyWidget::NotifyFoo() is executed, unless
+//     // |foo_subscription_| has been destroyed.
+//   }
+//
+//   // Automatically deregisters the callback when deleted (e.g. in
+//   // ~MyWidgetListener()).  Unretained(this) is safe here since the
+//   // ScopedClosureRunner does not outlive |this|.
+//   CallbackListSubscription foo_subscription_ =
+//       MyWidget::Get()->RegisterCallback(
+//           base::BindRepeating(&MyWidgetListener::OnFoo,
+//                               base::Unretained(this)));
+// };
+//
+// UNSUPPORTED:
+//
+// * Destroying the CallbackList during callback notification.
+//
+// This is possible to support, but not currently necessary.
+
+#ifndef CEF_INCLUDE_BASE_CEF_CALLBACK_LIST_H_
+#define CEF_INCLUDE_BASE_CEF_CALLBACK_LIST_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/callback_list.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <algorithm>
+#include <list>
+#include <memory>
+#include <utility>
+
+#include "include/base/cef_auto_reset.h"
+#include "include/base/cef_bind.h"
+#include "include/base/cef_callback.h"
+#include "include/base/cef_callback_helpers.h"
+#include "include/base/cef_compiler_specific.h"
+#include "include/base/cef_logging.h"
+#include "include/base/cef_weak_ptr.h"
+
+namespace base {
+namespace internal {
+template <typename CallbackListImpl>
+class CallbackListBase;
+}  // namespace internal
+
+template <typename Signature>
+class OnceCallbackList;
+
+template <typename Signature>
+class RepeatingCallbackList;
+
+// A trimmed-down version of ScopedClosureRunner that can be used to guarantee a
+// closure is run on destruction. This is designed to be used by
+// CallbackListBase to run CancelCallback() when this subscription dies;
+// consumers can avoid callbacks on dead objects by ensuring the subscription
+// returned by CallbackListBase::Add() does not outlive the bound object in the
+// callback. A typical way to do this is to bind a callback to a member function
+// on `this` and store the returned subscription as a member variable.
+class CallbackListSubscription {
+ public:
+  CallbackListSubscription();
+  CallbackListSubscription(CallbackListSubscription&& subscription);
+  CallbackListSubscription& operator=(CallbackListSubscription&& subscription);
+  ~CallbackListSubscription();
+
+  explicit operator bool() const { return !!closure_; }
+
+ private:
+  template <typename T>
+  friend class internal::CallbackListBase;
+
+  explicit CallbackListSubscription(base::OnceClosure closure);
+
+  void Run();
+
+  OnceClosure closure_;
+};
+
+namespace internal {
+
+// From base/stl_util.h.
+template <class T, class Allocator, class Predicate>
+size_t EraseIf(std::list<T, Allocator>& container, Predicate pred) {
+  size_t old_size = container.size();
+  container.remove_if(pred);
+  return old_size - container.size();
+}
+
+// A traits class to break circular type dependencies between CallbackListBase
+// and its subclasses.
+template <typename CallbackList>
+struct CallbackListTraits;
+
+// NOTE: It's important that Callbacks provide iterator stability when items are
+// added to the end, so e.g. a std::vector<> is not suitable here.
+template <typename Signature>
+struct CallbackListTraits<OnceCallbackList<Signature>> {
+  using CallbackType = OnceCallback<Signature>;
+  using Callbacks = std::list<CallbackType>;
+};
+template <typename Signature>
+struct CallbackListTraits<RepeatingCallbackList<Signature>> {
+  using CallbackType = RepeatingCallback<Signature>;
+  using Callbacks = std::list<CallbackType>;
+};
+
+template <typename CallbackListImpl>
+class CallbackListBase {
+ public:
+  using CallbackType =
+      typename CallbackListTraits<CallbackListImpl>::CallbackType;
+  static_assert(IsBaseCallback<CallbackType>::value, "");
+
+  // TODO(crbug.com/1103086): Update references to use this directly and by
+  // value, then remove.
+  using Subscription = CallbackListSubscription;
+
+  CallbackListBase() = default;
+  CallbackListBase(const CallbackListBase&) = delete;
+  CallbackListBase& operator=(const CallbackListBase&) = delete;
+
+  ~CallbackListBase() {
+    // Destroying the list during iteration is unsupported and will cause a UAF.
+    CHECK(!iterating_);
+  }
+
+  // Registers |cb| for future notifications. Returns a CallbackListSubscription
+  // whose destruction will cancel |cb|.
+  CallbackListSubscription Add(CallbackType cb) WARN_UNUSED_RESULT {
+    DCHECK(!cb.is_null());
+    return CallbackListSubscription(base::BindOnce(
+        &CallbackListBase::CancelCallback, weak_ptr_factory_.GetWeakPtr(),
+        callbacks_.insert(callbacks_.end(), std::move(cb))));
+  }
+
+  // Registers |cb| for future notifications. Provides no way for the caller to
+  // cancel, so this is only safe for cases where the callback is guaranteed to
+  // live at least as long as this list (e.g. if it's bound on the same object
+  // that owns the list).
+  // TODO(pkasting): Attempt to use Add() instead and see if callers can relax
+  // other lifetime/ordering mechanisms as a result.
+  void AddUnsafe(CallbackType cb) {
+    DCHECK(!cb.is_null());
+    callbacks_.push_back(std::move(cb));
+  }
+
+  // Registers |removal_callback| to be run after elements are removed from the
+  // list of registered callbacks.
+  void set_removal_callback(const RepeatingClosure& removal_callback) {
+    removal_callback_ = removal_callback;
+  }
+
+  // Returns whether the list of registered callbacks is empty (from an external
+  // perspective -- meaning no remaining callbacks are live).
+  bool empty() const {
+    return std::all_of(callbacks_.cbegin(), callbacks_.cend(),
+                       [](const auto& callback) { return callback.is_null(); });
+  }
+
+  // Calls all registered callbacks that are not canceled beforehand. If any
+  // callbacks are unregistered, notifies any registered removal callback at the
+  // end.
+  //
+  // Arguments must be copyable, since they must be supplied to all callbacks.
+  // Move-only types would be destructively modified by passing them to the
+  // first callback and not reach subsequent callbacks as intended.
+  //
+  // Notify() may be called re-entrantly, in which case the nested call
+  // completes before the outer one continues. Callbacks are only ever added at
+  // the end and canceled callbacks are not pruned from the list until the
+  // outermost iteration completes, so existing iterators should never be
+  // invalidated. However, this does mean that a callback added during a nested
+  // call can be notified by outer calls -- meaning it will be notified about
+  // things that happened before it was added -- if its subscription outlives
+  // the reentrant Notify() call.
+  template <typename... RunArgs>
+  void Notify(RunArgs&&... args) {
+    if (empty())
+      return;  // Nothing to do.
+
+    {
+      AutoReset<bool> iterating(&iterating_, true);
+
+      // Skip any callbacks that are canceled during iteration.
+      // NOTE: Since RunCallback() may call Add(), it's not safe to cache the
+      // value of callbacks_.end() across loop iterations.
+      const auto next_valid = [this](const auto it) {
+        return std::find_if_not(it, callbacks_.end(), [](const auto& callback) {
+          return callback.is_null();
+        });
+      };
+      for (auto it = next_valid(callbacks_.begin()); it != callbacks_.end();
+           it = next_valid(it))
+        // NOTE: Intentionally does not call std::forward<RunArgs>(args)...,
+        // since that would allow move-only arguments.
+        static_cast<CallbackListImpl*>(this)->RunCallback(it++, args...);
+    }
+
+    // Re-entrant invocations shouldn't prune anything from the list. This can
+    // invalidate iterators from underneath higher call frames. It's safe to
+    // simply do nothing, since the outermost frame will continue through here
+    // and prune all null callbacks below.
+    if (iterating_)
+      return;
+
+    // Any null callbacks remaining in the list were canceled due to
+    // Subscription destruction during iteration, and can safely be erased now.
+    const size_t erased_callbacks =
+        EraseIf(callbacks_, [](const auto& cb) { return cb.is_null(); });
+
+    // Run |removal_callback_| if any callbacks were canceled. Note that we
+    // cannot simply compare list sizes before and after iterating, since
+    // notification may result in Add()ing new callbacks as well as canceling
+    // them. Also note that if this is a OnceCallbackList, the OnceCallbacks
+    // that were executed above have all been removed regardless of whether
+    // they're counted in |erased_callbacks_|.
+    if (removal_callback_ &&
+        (erased_callbacks || IsOnceCallback<CallbackType>::value))
+      removal_callback_.Run();  // May delete |this|!
+  }
+
+ protected:
+  using Callbacks = typename CallbackListTraits<CallbackListImpl>::Callbacks;
+
+  // Holds non-null callbacks, which will be called during Notify().
+  Callbacks callbacks_;
+
+ private:
+  // Cancels the callback pointed to by |it|, which is guaranteed to be valid.
+  void CancelCallback(const typename Callbacks::iterator& it) {
+    if (static_cast<CallbackListImpl*>(this)->CancelNullCallback(it))
+      return;
+
+    if (iterating_) {
+      // Calling erase() here is unsafe, since the loop in Notify() may be
+      // referencing this same iterator, e.g. if adjacent callbacks'
+      // Subscriptions are both destroyed when the first one is Run().  Just
+      // reset the callback and let Notify() clean it up at the end.
+      it->Reset();
+    } else {
+      callbacks_.erase(it);
+      if (removal_callback_)
+        removal_callback_.Run();  // May delete |this|!
+    }
+  }
+
+  // Set while Notify() is traversing |callbacks_|.  Used primarily to avoid
+  // invalidating iterators that may be in use.
+  bool iterating_ = false;
+
+  // Called after elements are removed from |callbacks_|.
+  RepeatingClosure removal_callback_;
+
+  WeakPtrFactory<CallbackListBase> weak_ptr_factory_{this};
+};
+
+}  // namespace internal
+
+template <typename Signature>
+class OnceCallbackList
+    : public internal::CallbackListBase<OnceCallbackList<Signature>> {
+ private:
+  friend internal::CallbackListBase<OnceCallbackList>;
+  using Traits = internal::CallbackListTraits<OnceCallbackList>;
+
+  // Runs the current callback, which may cancel it or any other callbacks.
+  template <typename... RunArgs>
+  void RunCallback(typename Traits::Callbacks::iterator it, RunArgs&&... args) {
+    // OnceCallbacks still have Subscriptions with outstanding iterators;
+    // splice() removes them from |callbacks_| without invalidating those.
+    null_callbacks_.splice(null_callbacks_.end(), this->callbacks_, it);
+
+    // NOTE: Intentionally does not call std::forward<RunArgs>(args)...; see
+    // comments in Notify().
+    std::move(*it).Run(args...);
+  }
+
+  // If |it| refers to an already-canceled callback, does any necessary cleanup
+  // and returns true.  Otherwise returns false.
+  bool CancelNullCallback(const typename Traits::Callbacks::iterator& it) {
+    if (it->is_null()) {
+      null_callbacks_.erase(it);
+      return true;
+    }
+    return false;
+  }
+
+  // Holds null callbacks whose Subscriptions are still alive, so the
+  // Subscriptions will still contain valid iterators.  Only needed for
+  // OnceCallbacks, since RepeatingCallbacks are not canceled except by
+  // Subscription destruction.
+  typename Traits::Callbacks null_callbacks_;
+};
+
+template <typename Signature>
+class RepeatingCallbackList
+    : public internal::CallbackListBase<RepeatingCallbackList<Signature>> {
+ private:
+  friend internal::CallbackListBase<RepeatingCallbackList>;
+  using Traits = internal::CallbackListTraits<RepeatingCallbackList>;
+  // Runs the current callback, which may cancel it or any other callbacks.
+  template <typename... RunArgs>
+  void RunCallback(typename Traits::Callbacks::iterator it, RunArgs&&... args) {
+    // NOTE: Intentionally does not call std::forward<RunArgs>(args)...; see
+    // comments in Notify().
+    it->Run(args...);
+  }
+
+  // If |it| refers to an already-canceled callback, does any necessary cleanup
+  // and returns true.  Otherwise returns false.
+  bool CancelNullCallback(const typename Traits::Callbacks::iterator& it) {
+    // Because at most one Subscription can point to a given callback, and
+    // RepeatingCallbacks are only reset by CancelCallback(), no one should be
+    // able to request cancellation of a canceled RepeatingCallback.
+    DCHECK(!it->is_null());
+    return false;
+  }
+};
+
+// Syntactic sugar to parallel that used for Callbacks.
+// ClosureList explicitly not provided since it is not used, and CallbackList
+// is deprecated. {Once,Repeating}ClosureList should instead be used.
+using OnceClosureList = OnceCallbackList<void()>;
+using RepeatingClosureList = RepeatingCallbackList<void()>;
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_CALLBACK_LIST_H_

Thirdparty/libcef/include/base/cef_cancelable_callback.h

@@ -0,0 +1,185 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// CancelableCallback is a wrapper around base::Callback that allows
+// cancellation of a callback. CancelableCallback takes a reference on the
+// wrapped callback until this object is destroyed or Reset()/Cancel() are
+// called.
+//
+// NOTE:
+//
+// Calling CancelableCallback::Cancel() brings the object back to its natural,
+// default-constructed state, i.e., CancelableCallback::callback() will return
+// a null callback.
+//
+// THREAD-SAFETY:
+//
+// CancelableCallback objects must be created on, posted to, cancelled on, and
+// destroyed on the same thread.
+//
+//
+// EXAMPLE USAGE:
+//
+// In the following example, the test is verifying that RunIntensiveTest()
+// Quit()s the message loop within 4 seconds. The cancelable callback is posted
+// to the message loop, the intensive test runs, the message loop is run,
+// then the callback is cancelled.
+//
+// RunLoop run_loop;
+//
+// void TimeoutCallback(const std::string& timeout_message) {
+//   FAIL() << timeout_message;
+//   run_loop.QuitWhenIdle();
+// }
+//
+// CancelableOnceClosure timeout(
+//     base::BindOnce(&TimeoutCallback, "Test timed out."));
+// ThreadTaskRunnerHandle::Get()->PostDelayedTask(FROM_HERE, timeout.callback(),
+//                                                TimeDelta::FromSeconds(4));
+// RunIntensiveTest();
+// run_loop.Run();
+// timeout.Cancel();  // Hopefully this is hit before the timeout callback runs.
+
+#ifndef CEF_INCLUDE_BASE_CEF_CANCELABLE_CALLBACK_H_
+#define CEF_INCLUDE_BASE_CEF_CANCELABLE_CALLBACK_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/cancelable_callback.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <utility>
+
+#include "include/base/cef_bind.h"
+#include "include/base/cef_callback.h"
+#include "include/base/cef_compiler_specific.h"
+#include "include/base/cef_logging.h"
+#include "include/base/cef_weak_ptr.h"
+#include "include/base/internal/cef_callback_internal.h"
+
+namespace base {
+namespace internal {
+
+template <typename CallbackType>
+class CancelableCallbackImpl {
+ public:
+  CancelableCallbackImpl() = default;
+  CancelableCallbackImpl(const CancelableCallbackImpl&) = delete;
+  CancelableCallbackImpl& operator=(const CancelableCallbackImpl&) = delete;
+
+  // |callback| must not be null.
+  explicit CancelableCallbackImpl(CallbackType callback)
+      : callback_(std::move(callback)) {
+    DCHECK(callback_);
+  }
+
+  ~CancelableCallbackImpl() = default;
+
+  // Cancels and drops the reference to the wrapped callback.
+  void Cancel() {
+    weak_ptr_factory_.InvalidateWeakPtrs();
+    callback_.Reset();
+  }
+
+  // Returns true if the wrapped callback has been cancelled.
+  bool IsCancelled() const { return callback_.is_null(); }
+
+  // Sets |callback| as the closure that may be cancelled. |callback| may not
+  // be null. Outstanding and any previously wrapped callbacks are cancelled.
+  void Reset(CallbackType callback) {
+    DCHECK(callback);
+    // Outstanding tasks (e.g., posted to a message loop) must not be called.
+    Cancel();
+    callback_ = std::move(callback);
+  }
+
+  // Returns a callback that can be disabled by calling Cancel().
+  CallbackType callback() const {
+    if (!callback_)
+      return CallbackType();
+    CallbackType forwarder;
+    MakeForwarder(&forwarder);
+    return forwarder;
+  }
+
+ private:
+  template <typename... Args>
+  void MakeForwarder(RepeatingCallback<void(Args...)>* out) const {
+    using ForwarderType = void (CancelableCallbackImpl::*)(Args...);
+    ForwarderType forwarder = &CancelableCallbackImpl::ForwardRepeating;
+    *out = BindRepeating(forwarder, weak_ptr_factory_.GetWeakPtr());
+  }
+
+  template <typename... Args>
+  void MakeForwarder(OnceCallback<void(Args...)>* out) const {
+    using ForwarderType = void (CancelableCallbackImpl::*)(Args...);
+    ForwarderType forwarder = &CancelableCallbackImpl::ForwardOnce;
+    *out = BindOnce(forwarder, weak_ptr_factory_.GetWeakPtr());
+  }
+
+  template <typename... Args>
+  void ForwardRepeating(Args... args) {
+    callback_.Run(std::forward<Args>(args)...);
+  }
+
+  template <typename... Args>
+  void ForwardOnce(Args... args) {
+    weak_ptr_factory_.InvalidateWeakPtrs();
+    std::move(callback_).Run(std::forward<Args>(args)...);
+  }
+
+  // The stored closure that may be cancelled.
+  CallbackType callback_;
+  mutable base::WeakPtrFactory<CancelableCallbackImpl> weak_ptr_factory_{this};
+};
+
+}  // namespace internal
+
+// Consider using base::WeakPtr directly instead of base::CancelableCallback for
+// the task cancellation.
+template <typename Signature>
+using CancelableOnceCallback =
+    internal::CancelableCallbackImpl<OnceCallback<Signature>>;
+using CancelableOnceClosure = CancelableOnceCallback<void()>;
+
+template <typename Signature>
+using CancelableRepeatingCallback =
+    internal::CancelableCallbackImpl<RepeatingCallback<Signature>>;
+using CancelableRepeatingClosure = CancelableRepeatingCallback<void()>;
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_CANCELABLE_CALLBACK_H_

Thirdparty/libcef/include/base/cef_compiler_specific.h

@@ -0,0 +1,411 @@
+// Copyright (c) 2021 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_COMPILER_SPECIFIC_H_
+#define CEF_INCLUDE_BASE_CEF_COMPILER_SPECIFIC_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/compiler_specific.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include "include/base/cef_build.h"
+
+// This is a wrapper around `__has_cpp_attribute`, which can be used to test for
+// the presence of an attribute. In case the compiler does not support this
+// macro it will simply evaluate to 0.
+//
+// References:
+// https://wg21.link/sd6#testing-for-the-presence-of-an-attribute-__has_cpp_attribute
+// https://wg21.link/cpp.cond#:__has_cpp_attribute
+#if defined(__has_cpp_attribute)
+#define HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
+#else
+#define HAS_CPP_ATTRIBUTE(x) 0
+#endif
+
+// A wrapper around `__has_builtin`, similar to HAS_CPP_ATTRIBUTE.
+#if defined(__has_builtin)
+#define HAS_BUILTIN(x) __has_builtin(x)
+#else
+#define HAS_BUILTIN(x) 0
+#endif
+
+// __has_feature and __has_attribute don't exist for MSVC.
+#if !defined(__has_feature)
+#define __has_feature(x) 0
+#endif  // !defined(__has_feature)
+
+#if !defined(__has_attribute)
+#define __has_attribute(x) 0
+#endif  // !defined(__has_attribute)
+
+// Annotate a function indicating it should not be inlined.
+// Use like:
+//   NOINLINE void DoStuff() { ... }
+#if defined(COMPILER_GCC)
+#define NOINLINE __attribute__((noinline))
+#elif defined(COMPILER_MSVC)
+#define NOINLINE __declspec(noinline)
+#else
+#define NOINLINE
+#endif
+
+#if defined(COMPILER_GCC) && defined(NDEBUG)
+#define ALWAYS_INLINE inline __attribute__((__always_inline__))
+#elif defined(COMPILER_MSVC) && defined(NDEBUG)
+#define ALWAYS_INLINE __forceinline
+#else
+#define ALWAYS_INLINE inline
+#endif
+
+// Annotate a function indicating it should never be tail called. Useful to make
+// sure callers of the annotated function are never omitted from call-stacks.
+// To provide the complementary behavior (prevent the annotated function from
+// being omitted) look at NOINLINE. Also note that this doesn't prevent code
+// folding of multiple identical caller functions into a single signature. To
+// prevent code folding, see NO_CODE_FOLDING() in base/debug/alias.h.
+// Use like:
+//   void NOT_TAIL_CALLED FooBar();
+#if defined(__clang__) && __has_attribute(not_tail_called)
+#define NOT_TAIL_CALLED __attribute__((not_tail_called))
+#else
+#define NOT_TAIL_CALLED
+#endif
+
+// Specify memory alignment for structs, classes, etc.
+// Use like:
+//   class ALIGNAS(16) MyClass { ... }
+//   ALIGNAS(16) int array[4];
+//
+// In most places you can use the C++11 keyword "alignas", which is preferred.
+//
+// But compilers have trouble mixing __attribute__((...)) syntax with
+// alignas(...) syntax.
+//
+// Doesn't work in clang or gcc:
+//   struct alignas(16) __attribute__((packed)) S { char c; };
+// Works in clang but not gcc:
+//   struct __attribute__((packed)) alignas(16) S2 { char c; };
+// Works in clang and gcc:
+//   struct alignas(16) S3 { char c; } __attribute__((packed));
+//
+// There are also some attributes that must be specified *before* a class
+// definition: visibility (used for exporting functions/classes) is one of
+// these attributes. This means that it is not possible to use alignas() with a
+// class that is marked as exported.
+#if defined(COMPILER_MSVC)
+#define ALIGNAS(byte_alignment) __declspec(align(byte_alignment))
+#elif defined(COMPILER_GCC)
+#define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment)))
+#endif
+
+// In case the compiler supports it NO_UNIQUE_ADDRESS evaluates to the C++20
+// attribute [[no_unique_address]]. This allows annotating data members so that
+// they need not have an address distinct from all other non-static data members
+// of its class.
+//
+// References:
+// * https://en.cppreference.com/w/cpp/language/attributes/no_unique_address
+// * https://wg21.link/dcl.attr.nouniqueaddr
+#if HAS_CPP_ATTRIBUTE(no_unique_address)
+#define NO_UNIQUE_ADDRESS [[no_unique_address]]
+#else
+#define NO_UNIQUE_ADDRESS
+#endif
+
+// Tell the compiler a function is using a printf-style format string.
+// |format_param| is the one-based index of the format string parameter;
+// |dots_param| is the one-based index of the "..." parameter.
+// For v*printf functions (which take a va_list), pass 0 for dots_param.
+// (This is undocumented but matches what the system C headers do.)
+// For member functions, the implicit this parameter counts as index 1.
+#if defined(COMPILER_GCC) || defined(__clang__)
+#define PRINTF_FORMAT(format_param, dots_param) \
+  __attribute__((format(printf, format_param, dots_param)))
+#else
+#define PRINTF_FORMAT(format_param, dots_param)
+#endif
+
+// WPRINTF_FORMAT is the same, but for wide format strings.
+// This doesn't appear to yet be implemented in any compiler.
+// See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38308 .
+#define WPRINTF_FORMAT(format_param, dots_param)
+// If available, it would look like:
+//   __attribute__((format(wprintf, format_param, dots_param)))
+
+// Sanitizers annotations.
+#if defined(__has_attribute)
+#if __has_attribute(no_sanitize)
+#define NO_SANITIZE(what) __attribute__((no_sanitize(what)))
+#endif
+#endif
+#if !defined(NO_SANITIZE)
+#define NO_SANITIZE(what)
+#endif
+
+// MemorySanitizer annotations.
+#if defined(MEMORY_SANITIZER) && !defined(OS_NACL)
+#include <sanitizer/msan_interface.h>
+
+// Mark a memory region fully initialized.
+// Use this to annotate code that deliberately reads uninitialized data, for
+// example a GC scavenging root set pointers from the stack.
+#define MSAN_UNPOISON(p, size) __msan_unpoison(p, size)
+
+// Check a memory region for initializedness, as if it was being used here.
+// If any bits are uninitialized, crash with an MSan report.
+// Use this to sanitize data which MSan won't be able to track, e.g. before
+// passing data to another process via shared memory.
+#define MSAN_CHECK_MEM_IS_INITIALIZED(p, size) \
+  __msan_check_mem_is_initialized(p, size)
+#else  // MEMORY_SANITIZER
+#define MSAN_UNPOISON(p, size)
+#define MSAN_CHECK_MEM_IS_INITIALIZED(p, size)
+#endif  // MEMORY_SANITIZER
+
+// DISABLE_CFI_PERF -- Disable Control Flow Integrity for perf reasons.
+#if !defined(DISABLE_CFI_PERF)
+#if defined(__clang__) && defined(OFFICIAL_BUILD)
+#define DISABLE_CFI_PERF __attribute__((no_sanitize("cfi")))
+#else
+#define DISABLE_CFI_PERF
+#endif
+#endif
+
+// DISABLE_CFI_ICALL -- Disable Control Flow Integrity indirect call checks.
+#if !defined(DISABLE_CFI_ICALL)
+#if defined(OS_WIN)
+// Windows also needs __declspec(guard(nocf)).
+#define DISABLE_CFI_ICALL NO_SANITIZE("cfi-icall") __declspec(guard(nocf))
+#else
+#define DISABLE_CFI_ICALL NO_SANITIZE("cfi-icall")
+#endif
+#endif
+#if !defined(DISABLE_CFI_ICALL)
+#define DISABLE_CFI_ICALL
+#endif
+
+// Macro useful for writing cross-platform function pointers.
+#if !defined(CDECL)
+#if defined(OS_WIN)
+#define CDECL __cdecl
+#else  // defined(OS_WIN)
+#define CDECL
+#endif  // defined(OS_WIN)
+#endif  // !defined(CDECL)
+
+// Macro for hinting that an expression is likely to be false.
+#if !defined(UNLIKELY)
+#if defined(COMPILER_GCC) || defined(__clang__)
+#define UNLIKELY(x) __builtin_expect(!!(x), 0)
+#else
+#define UNLIKELY(x) (x)
+#endif  // defined(COMPILER_GCC)
+#endif  // !defined(UNLIKELY)
+
+#if !defined(LIKELY)
+#if defined(COMPILER_GCC) || defined(__clang__)
+#define LIKELY(x) __builtin_expect(!!(x), 1)
+#else
+#define LIKELY(x) (x)
+#endif  // defined(COMPILER_GCC)
+#endif  // !defined(LIKELY)
+
+// Compiler feature-detection.
+// clang.llvm.org/docs/LanguageExtensions.html#has-feature-and-has-extension
+#if defined(__has_feature)
+#define HAS_FEATURE(FEATURE) __has_feature(FEATURE)
+#else
+#define HAS_FEATURE(FEATURE) 0
+#endif
+
+// Macro for telling -Wimplicit-fallthrough that a fallthrough is intentional.
+#if defined(__clang__)
+#define FALLTHROUGH [[clang::fallthrough]]
+#else
+#define FALLTHROUGH
+#endif
+
+#if defined(COMPILER_GCC)
+#define PRETTY_FUNCTION __PRETTY_FUNCTION__
+#elif defined(COMPILER_MSVC)
+#define PRETTY_FUNCTION __FUNCSIG__
+#else
+// See https://en.cppreference.com/w/c/language/function_definition#func
+#define PRETTY_FUNCTION __func__
+#endif
+
+#if !defined(CPU_ARM_NEON)
+#if defined(__arm__)
+#if !defined(__ARMEB__) && !defined(__ARM_EABI__) && !defined(__EABI__) && \
+    !defined(__VFP_FP__) && !defined(_WIN32_WCE) && !defined(ANDROID)
+#error Chromium does not support middle endian architecture
+#endif
+#if defined(__ARM_NEON__)
+#define CPU_ARM_NEON 1
+#endif
+#endif  // defined(__arm__)
+#endif  // !defined(CPU_ARM_NEON)
+
+#if !defined(HAVE_MIPS_MSA_INTRINSICS)
+#if defined(__mips_msa) && defined(__mips_isa_rev) && (__mips_isa_rev >= 5)
+#define HAVE_MIPS_MSA_INTRINSICS 1
+#endif
+#endif
+
+#if defined(__clang__) && __has_attribute(uninitialized)
+// Attribute "uninitialized" disables -ftrivial-auto-var-init=pattern for
+// the specified variable.
+// Library-wide alternative is
+// 'configs -= [ "//build/config/compiler:default_init_stack_vars" ]' in .gn
+// file.
+//
+// See "init_stack_vars" in build/config/compiler/BUILD.gn and
+// http://crbug.com/977230
+// "init_stack_vars" is enabled for non-official builds and we hope to enable it
+// in official build in 2020 as well. The flag writes fixed pattern into
+// uninitialized parts of all local variables. In rare cases such initialization
+// is undesirable and attribute can be used:
+//   1. Degraded performance
+// In most cases compiler is able to remove additional stores. E.g. if memory is
+// never accessed or properly initialized later. Preserved stores mostly will
+// not affect program performance. However if compiler failed on some
+// performance critical code we can get a visible regression in a benchmark.
+//   2. memset, memcpy calls
+// Compiler may replaces some memory writes with memset or memcpy calls. This is
+// not -ftrivial-auto-var-init specific, but it can happen more likely with the
+// flag. It can be a problem if code is not linked with C run-time library.
+//
+// Note: The flag is security risk mitigation feature. So in future the
+// attribute uses should be avoided when possible. However to enable this
+// mitigation on the most of the code we need to be less strict now and minimize
+// number of exceptions later. So if in doubt feel free to use attribute, but
+// please document the problem for someone who is going to cleanup it later.
+// E.g. platform, bot, benchmark or test name in patch description or next to
+// the attribute.
+#define STACK_UNINITIALIZED __attribute__((uninitialized))
+#else
+#define STACK_UNINITIALIZED
+#endif
+
+// The ANALYZER_ASSUME_TRUE(bool arg) macro adds compiler-specific hints
+// to Clang which control what code paths are statically analyzed,
+// and is meant to be used in conjunction with assert & assert-like functions.
+// The expression is passed straight through if analysis isn't enabled.
+//
+// ANALYZER_SKIP_THIS_PATH() suppresses static analysis for the current
+// codepath and any other branching codepaths that might follow.
+#if defined(__clang_analyzer__)
+
+inline constexpr bool AnalyzerNoReturn() __attribute__((analyzer_noreturn)) {
+  return false;
+}
+
+inline constexpr bool AnalyzerAssumeTrue(bool arg) {
+  // AnalyzerNoReturn() is invoked and analysis is terminated if |arg| is
+  // false.
+  return arg || AnalyzerNoReturn();
+}
+
+#define ANALYZER_ASSUME_TRUE(arg) ::AnalyzerAssumeTrue(!!(arg))
+#define ANALYZER_SKIP_THIS_PATH() static_cast<void>(::AnalyzerNoReturn())
+#define ANALYZER_ALLOW_UNUSED(var) static_cast<void>(var);
+
+#else  // !defined(__clang_analyzer__)
+
+#define ANALYZER_ASSUME_TRUE(arg) (arg)
+#define ANALYZER_SKIP_THIS_PATH()
+#define ANALYZER_ALLOW_UNUSED(var) static_cast<void>(var);
+
+#endif  // defined(__clang_analyzer__)
+
+// Use nomerge attribute to disable optimization of merging multiple same calls.
+#if defined(__clang__) && __has_attribute(nomerge)
+#define NOMERGE [[clang::nomerge]]
+#else
+#define NOMERGE
+#endif
+
+// Marks a type as being eligible for the "trivial" ABI despite having a
+// non-trivial destructor or copy/move constructor. Such types can be relocated
+// after construction by simply copying their memory, which makes them eligible
+// to be passed in registers. The canonical example is std::unique_ptr.
+//
+// Use with caution; this has some subtle effects on constructor/destructor
+// ordering and will be very incorrect if the type relies on its address
+// remaining constant. When used as a function argument (by value), the value
+// may be constructed in the caller's stack frame, passed in a register, and
+// then used and destructed in the callee's stack frame. A similar thing can
+// occur when values are returned.
+//
+// TRIVIAL_ABI is not needed for types which have a trivial destructor and
+// copy/move constructors, such as base::TimeTicks and other POD.
+//
+// It is also not likely to be effective on types too large to be passed in one
+// or two registers on typical target ABIs.
+//
+// See also:
+//   https://clang.llvm.org/docs/AttributeReference.html#trivial-abi
+//   https://libcxx.llvm.org/docs/DesignDocs/UniquePtrTrivialAbi.html
+#if defined(__clang__) && __has_attribute(trivial_abi)
+#define TRIVIAL_ABI [[clang::trivial_abi]]
+#else
+#define TRIVIAL_ABI
+#endif
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+// Annotate a function indicating the caller must examine the return value.
+// Use like:
+//   int foo() WARN_UNUSED_RESULT;
+// To explicitly ignore a result, use std::ignore from <tuple>.
+// Alternately use `[[nodiscard]]` with code that supports C++17.
+#undef WARN_UNUSED_RESULT
+#if defined(COMPILER_GCC) || defined(__clang__)
+#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define WARN_UNUSED_RESULT
+#endif
+
+// Annotate a variable indicating it's ok if the variable is not used.
+// (Typically used to silence a compiler warning when the assignment
+// is important for some other reason.)
+// Use like:
+//   int x = ...;
+//   ALLOW_UNUSED_LOCAL(x);
+// Alternately use `[[maybe_unused]]` with code that supports C++17.
+#define ALLOW_UNUSED_LOCAL(x) (void)x
+
+#endif  // CEF_INCLUDE_BASE_CEF_COMPILER_SPECIFIC_H_

Thirdparty/libcef/include/base/cef_cxx17_backports.h

@@ -0,0 +1,60 @@
+// Copyright (c) 2021 Marshall A. Greenblatt. Portions copyright (c) 2021
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#ifndef CEF_INCLUDE_BASE_CEF_CXX17_BACKPORTS_H_
+#define CEF_INCLUDE_BASE_CEF_CXX17_BACKPORTS_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/cxx17_backports.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following was removed from Chromium in https://crrev.com/78734f77be.
+
+namespace base {
+
+// C++14 implementation of C++17's std::size():
+// http://en.cppreference.com/w/cpp/iterator/size
+template <typename Container>
+constexpr auto size(const Container& c) -> decltype(c.size()) {
+  return c.size();
+}
+
+template <typename T, size_t N>
+constexpr size_t size(const T (&array)[N]) noexcept {
+  return N;
+}
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_CXX17_BACKPORTS_H_

Thirdparty/libcef/include/base/cef_lock.h

@@ -0,0 +1,174 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_LOCK_H_
+#define CEF_INCLUDE_BASE_CEF_LOCK_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/synchronization/lock.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include "include/base/cef_logging.h"
+#include "include/base/cef_platform_thread.h"
+#include "include/base/internal/cef_lock_impl.h"
+
+namespace base {
+namespace cef_internal {
+
+// A convenient wrapper for an OS specific critical section.  The only real
+// intelligence in this class is in debug mode for the support for the
+// AssertAcquired() method.
+class Lock {
+ public:
+#if !DCHECK_IS_ON()  // Optimized wrapper implementation
+  Lock() : lock_() {}
+
+  Lock(const Lock&) = delete;
+  Lock& operator=(const Lock&) = delete;
+
+  ~Lock() {}
+  void Acquire() { lock_.Lock(); }
+  void Release() { lock_.Unlock(); }
+
+  // If the lock is not held, take it and return true. If the lock is already
+  // held by another thread, immediately return false. This must not be called
+  // by a thread already holding the lock (what happens is undefined and an
+  // assertion may fail).
+  bool Try() { return lock_.Try(); }
+
+  // Null implementation if not debug.
+  void AssertAcquired() const {}
+#else
+  Lock();
+  ~Lock();
+
+  // NOTE: Although windows critical sections support recursive locks, we do not
+  // allow this, and we will commonly fire a DCHECK() if a thread attempts to
+  // acquire the lock a second time (while already holding it).
+  void Acquire() {
+    lock_.Lock();
+    CheckUnheldAndMark();
+  }
+  void Release() {
+    CheckHeldAndUnmark();
+    lock_.Unlock();
+  }
+
+  bool Try() {
+    bool rv = lock_.Try();
+    if (rv) {
+      CheckUnheldAndMark();
+    }
+    return rv;
+  }
+
+  void AssertAcquired() const;
+#endif  // !DCHECK_IS_ON()
+
+ private:
+#if DCHECK_IS_ON()
+  // Members and routines taking care of locks assertions.
+  // Note that this checks for recursive locks and allows them
+  // if the variable is set.  This is allowed by the underlying implementation
+  // on windows but not on Posix, so we're doing unneeded checks on Posix.
+  // It's worth it to share the code.
+  void CheckHeldAndUnmark();
+  void CheckUnheldAndMark();
+
+  // All private data is implicitly protected by lock_.
+  // Be VERY careful to only access members under that lock.
+  base::PlatformThreadRef owning_thread_ref_;
+#endif  // DCHECK_IS_ON()
+
+  // Platform specific underlying lock implementation.
+  LockImpl lock_;
+};
+
+// A helper class that acquires the given Lock while the AutoLock is in scope.
+class AutoLock {
+ public:
+  struct AlreadyAcquired {};
+
+  explicit AutoLock(Lock& lock) : lock_(lock) { lock_.Acquire(); }
+
+  AutoLock(Lock& lock, const AlreadyAcquired&) : lock_(lock) {
+    lock_.AssertAcquired();
+  }
+
+  AutoLock(const AutoLock&) = delete;
+  AutoLock& operator=(const AutoLock&) = delete;
+
+  ~AutoLock() {
+    lock_.AssertAcquired();
+    lock_.Release();
+  }
+
+ private:
+  Lock& lock_;
+};
+
+// AutoUnlock is a helper that will Release() the |lock| argument in the
+// constructor, and re-Acquire() it in the destructor.
+class AutoUnlock {
+ public:
+  explicit AutoUnlock(Lock& lock) : lock_(lock) {
+    // We require our caller to have the lock.
+    lock_.AssertAcquired();
+    lock_.Release();
+  }
+
+  AutoUnlock(const AutoUnlock&) = delete;
+  AutoUnlock& operator=(const AutoUnlock&) = delete;
+
+  ~AutoUnlock() { lock_.Acquire(); }
+
+ private:
+  Lock& lock_;
+};
+
+}  // namespace cef_internal
+
+// Implement classes in the cef_internal namespace and then expose them to the
+// base namespace. This avoids conflicts with the base.lib implementation when
+// linking sandbox support on Windows.
+using cef_internal::AutoLock;
+using cef_internal::AutoUnlock;
+using cef_internal::Lock;
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_LOCK_H_

Thirdparty/libcef/include/base/cef_logging.h

@@ -0,0 +1,758 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// The contents of this file are only available to applications that link
+// against the libcef_dll_wrapper target.
+//
+// WARNING: Logging macros should not be used in the main/browser process before
+// calling CefInitialize or in sub-processes before calling CefExecuteProcess.
+//
+// Instructions
+// ------------
+//
+// Make a bunch of macros for logging.  The way to log things is to stream
+// things to LOG(<a particular severity level>).  E.g.,
+//
+//   LOG(INFO) << "Found " << num_cookies << " cookies";
+//
+// You can also do conditional logging:
+//
+//   LOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
+//
+// The CHECK(condition) macro is active in both debug and release builds and
+// effectively performs a LOG(FATAL) which terminates the process and
+// generates a crashdump unless a debugger is attached.
+//
+// There are also "debug mode" logging macros like the ones above:
+//
+//   DLOG(INFO) << "Found cookies";
+//
+//   DLOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
+//
+// All "debug mode" logging is compiled away to nothing for non-debug mode
+// compiles.  LOG_IF and development flags also work well together
+// because the code can be compiled away sometimes.
+//
+// We also have
+//
+//   LOG_ASSERT(assertion);
+//   DLOG_ASSERT(assertion);
+//
+// which is syntactic sugar for {,D}LOG_IF(FATAL, assert fails) << assertion;
+//
+// There are "verbose level" logging macros.  They look like
+//
+//   VLOG(1) << "I'm printed when you run the program with --v=1 or more";
+//   VLOG(2) << "I'm printed when you run the program with --v=2 or more";
+//
+// These always log at the INFO log level (when they log at all).
+// The verbose logging can also be turned on module-by-module.  For instance,
+//    --vmodule=profile=2,icon_loader=1,browser_*=3,*/chromeos/*=4 --v=0
+// will cause:
+//   a. VLOG(2) and lower messages to be printed from profile.{h,cc}
+//   b. VLOG(1) and lower messages to be printed from icon_loader.{h,cc}
+//   c. VLOG(3) and lower messages to be printed from files prefixed with
+//      "browser"
+//   d. VLOG(4) and lower messages to be printed from files under a
+//     "chromeos" directory.
+//   e. VLOG(0) and lower messages to be printed from elsewhere
+//
+// The wildcarding functionality shown by (c) supports both '*' (match
+// 0 or more characters) and '?' (match any single character)
+// wildcards.  Any pattern containing a forward or backward slash will
+// be tested against the whole pathname and not just the module.
+// E.g., "*/foo/bar/*=2" would change the logging level for all code
+// in source files under a "foo/bar" directory.
+//
+// There's also VLOG_IS_ON(n) "verbose level" condition macro. To be used as
+//
+//   if (VLOG_IS_ON(2)) {
+//     // do some logging preparation and logging
+//     // that can't be accomplished with just VLOG(2) << ...;
+//   }
+//
+// There is also a VLOG_IF "verbose level" condition macro for sample
+// cases, when some extra computation and preparation for logs is not
+// needed.
+//
+//   VLOG_IF(1, (size > 1024))
+//      << "I'm printed when size is more than 1024 and when you run the "
+//         "program with --v=1 or more";
+//
+// We also override the standard 'assert' to use 'DLOG_ASSERT'.
+//
+// Lastly, there is:
+//
+//   PLOG(ERROR) << "Couldn't do foo";
+//   DPLOG(ERROR) << "Couldn't do foo";
+//   PLOG_IF(ERROR, cond) << "Couldn't do foo";
+//   DPLOG_IF(ERROR, cond) << "Couldn't do foo";
+//   PCHECK(condition) << "Couldn't do foo";
+//   DPCHECK(condition) << "Couldn't do foo";
+//
+// which append the last system error to the message in string form (taken from
+// GetLastError() on Windows and errno on POSIX).
+//
+// The supported severity levels for macros that allow you to specify one
+// are (in increasing order of severity) INFO, WARNING, ERROR, and FATAL.
+//
+// Very important: logging a message at the FATAL severity level causes
+// the program to terminate (after the message is logged).
+//
+// There is the special severity of DFATAL, which logs FATAL in debug mode,
+// ERROR in normal mode.
+//
+
+#ifndef CEF_INCLUDE_BASE_CEF_LOGGING_H_
+#define CEF_INCLUDE_BASE_CEF_LOGGING_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/logging.h"
+#include "base/notreached.h"
+#elif defined(DCHECK)
+// Do nothing if the macros provided by this header already exist.
+// This can happen in cases where Chromium code is used directly by the
+// client application. When using Chromium code directly always include
+// the Chromium header first to avoid type conflicts.
+
+// Always define the DCHECK_IS_ON macro which is used from other CEF headers.
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
+#define DCHECK_IS_ON() false
+#else
+#define DCHECK_IS_ON() true
+#endif
+
+#else  // !defined(DCHECK)
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <cassert>
+#include <cstring>
+#include <sstream>
+#include <string>
+
+#include "include/base/cef_build.h"
+#include "include/internal/cef_logging_internal.h"
+
+namespace cef {
+namespace logging {
+
+// Gets the current log level.
+inline int GetMinLogLevel() {
+  return cef_get_min_log_level();
+}
+
+// Gets the current vlog level for the given file (usually taken from
+// __FILE__). Note that |N| is the size *with* the null terminator.
+template <size_t N>
+int GetVlogLevel(const char (&file)[N]) {
+  return cef_get_vlog_level(file, N);
+}
+
+typedef int LogSeverity;
+const LogSeverity LOG_VERBOSE = -1;  // This is level 1 verbosity
+// Note: the log severities are used to index into the array of names,
+// see log_severity_names.
+const LogSeverity LOG_INFO = 0;
+const LogSeverity LOG_WARNING = 1;
+const LogSeverity LOG_ERROR = 2;
+const LogSeverity LOG_FATAL = 3;
+const LogSeverity LOG_NUM_SEVERITIES = 4;
+
+// LOG_DFATAL is LOG_FATAL in debug mode, ERROR in normal mode
+#ifdef NDEBUG
+const LogSeverity LOG_DFATAL = LOG_ERROR;
+#else
+const LogSeverity LOG_DFATAL = LOG_FATAL;
+#endif
+
+// A few definitions of macros that don't generate much code. These are used
+// by LOG() and LOG_IF, etc. Since these are used all over our code, it's
+// better to have compact code for these operations.
+#define COMPACT_GOOGLE_LOG_EX_INFO(ClassName, ...)                        \
+  ::cef::logging::ClassName(__FILE__, __LINE__, ::cef::logging::LOG_INFO, \
+                            ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_WARNING(ClassName, ...)                        \
+  ::cef::logging::ClassName(__FILE__, __LINE__, ::cef::logging::LOG_WARNING, \
+                            ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_ERROR(ClassName, ...)                        \
+  ::cef::logging::ClassName(__FILE__, __LINE__, ::cef::logging::LOG_ERROR, \
+                            ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_FATAL(ClassName, ...)                        \
+  ::cef::logging::ClassName(__FILE__, __LINE__, ::cef::logging::LOG_FATAL, \
+                            ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_DFATAL(ClassName, ...)                        \
+  ::cef::logging::ClassName(__FILE__, __LINE__, ::cef::logging::LOG_DFATAL, \
+                            ##__VA_ARGS__)
+
+#define COMPACT_GOOGLE_LOG_INFO COMPACT_GOOGLE_LOG_EX_INFO(LogMessage)
+#define COMPACT_GOOGLE_LOG_WARNING COMPACT_GOOGLE_LOG_EX_WARNING(LogMessage)
+#define COMPACT_GOOGLE_LOG_ERROR COMPACT_GOOGLE_LOG_EX_ERROR(LogMessage)
+#define COMPACT_GOOGLE_LOG_FATAL COMPACT_GOOGLE_LOG_EX_FATAL(LogMessage)
+#define COMPACT_GOOGLE_LOG_DFATAL COMPACT_GOOGLE_LOG_EX_DFATAL(LogMessage)
+
+#if defined(OS_WIN)
+// wingdi.h defines ERROR to be 0. When we call LOG(ERROR), it gets
+// substituted with 0, and it expands to COMPACT_GOOGLE_LOG_0. To allow us
+// to keep using this syntax, we define this macro to do the same thing
+// as COMPACT_GOOGLE_LOG_ERROR, and also define ERROR the same way that
+// the Windows SDK does for consistency.
+#define ERROR 0
+#define COMPACT_GOOGLE_LOG_EX_0(ClassName, ...) \
+  COMPACT_GOOGLE_LOG_EX_ERROR(ClassName, ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_0 COMPACT_GOOGLE_LOG_ERROR
+// Needed for LOG_IS_ON(ERROR).
+const LogSeverity LOG_0 = LOG_ERROR;
+#endif
+
+// As special cases, we can assume that LOG_IS_ON(FATAL) always holds. Also,
+// LOG_IS_ON(DFATAL) always holds in debug mode. In particular, CHECK()s will
+// always fire if they fail.
+#define LOG_IS_ON(severity) \
+  ((::cef::logging::LOG_##severity) >= ::cef::logging::GetMinLogLevel())
+
+// We can't do any caching tricks with VLOG_IS_ON() like the
+// google-glog version since it requires GCC extensions.  This means
+// that using the v-logging functions in conjunction with --vmodule
+// may be slow.
+#define VLOG_IS_ON(verboselevel) \
+  ((verboselevel) <= ::cef::logging::GetVlogLevel(__FILE__))
+
+// Helper macro which avoids evaluating the arguments to a stream if
+// the condition doesn't hold.
+#define LAZY_STREAM(stream, condition) \
+  !(condition) ? (void)0 : ::cef::logging::LogMessageVoidify() & (stream)
+
+// We use the preprocessor's merging operator, "##", so that, e.g.,
+// LOG(INFO) becomes the token COMPACT_GOOGLE_LOG_INFO.  There's some funny
+// subtle difference between ostream member streaming functions (e.g.,
+// ostream::operator<<(int) and ostream non-member streaming functions
+// (e.g., ::operator<<(ostream&, string&): it turns out that it's
+// impossible to stream something like a string directly to an unnamed
+// ostream. We employ a neat hack by calling the stream() member
+// function of LogMessage which seems to avoid the problem.
+#define LOG_STREAM(severity) COMPACT_GOOGLE_LOG_##severity.stream()
+
+#define LOG(severity) LAZY_STREAM(LOG_STREAM(severity), LOG_IS_ON(severity))
+#define LOG_IF(severity, condition) \
+  LAZY_STREAM(LOG_STREAM(severity), LOG_IS_ON(severity) && (condition))
+
+#define SYSLOG(severity) LOG(severity)
+#define SYSLOG_IF(severity, condition) LOG_IF(severity, condition)
+
+// The VLOG macros log with negative verbosities.
+#define VLOG_STREAM(verbose_level) \
+  cef::logging::LogMessage(__FILE__, __LINE__, -verbose_level).stream()
+
+#define VLOG(verbose_level) \
+  LAZY_STREAM(VLOG_STREAM(verbose_level), VLOG_IS_ON(verbose_level))
+
+#define VLOG_IF(verbose_level, condition) \
+  LAZY_STREAM(VLOG_STREAM(verbose_level), \
+              VLOG_IS_ON(verbose_level) && (condition))
+
+#if defined(OS_WIN)
+#define VPLOG_STREAM(verbose_level)                                            \
+  cef::logging::Win32ErrorLogMessage(__FILE__, __LINE__, -verbose_level,       \
+                                     ::cef::logging::GetLastSystemErrorCode()) \
+      .stream()
+#elif defined(OS_POSIX)
+#define VPLOG_STREAM(verbose_level)                                       \
+  cef::logging::ErrnoLogMessage(__FILE__, __LINE__, -verbose_level,       \
+                                ::cef::logging::GetLastSystemErrorCode()) \
+      .stream()
+#endif
+
+#define VPLOG(verbose_level) \
+  LAZY_STREAM(VPLOG_STREAM(verbose_level), VLOG_IS_ON(verbose_level))
+
+#define VPLOG_IF(verbose_level, condition) \
+  LAZY_STREAM(VPLOG_STREAM(verbose_level), \
+              VLOG_IS_ON(verbose_level) && (condition))
+
+// TODO(akalin): Add more VLOG variants, e.g. VPLOG.
+
+#define LOG_ASSERT(condition) \
+  LOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
+#define SYSLOG_ASSERT(condition) \
+  SYSLOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
+
+#if defined(OS_WIN)
+#define PLOG_STREAM(severity)                                                \
+  COMPACT_GOOGLE_LOG_EX_##severity(Win32ErrorLogMessage,                     \
+                                   ::cef::logging::GetLastSystemErrorCode()) \
+      .stream()
+#elif defined(OS_POSIX)
+#define PLOG_STREAM(severity)                                                \
+  COMPACT_GOOGLE_LOG_EX_##severity(ErrnoLogMessage,                          \
+                                   ::cef::logging::GetLastSystemErrorCode()) \
+      .stream()
+#endif
+
+#define PLOG(severity) LAZY_STREAM(PLOG_STREAM(severity), LOG_IS_ON(severity))
+
+#define PLOG_IF(severity, condition) \
+  LAZY_STREAM(PLOG_STREAM(severity), LOG_IS_ON(severity) && (condition))
+
+// The actual stream used isn't important.
+#define EAT_STREAM_PARAMETERS \
+  true ? (void)0 : ::cef::logging::LogMessageVoidify() & LOG_STREAM(FATAL)
+
+// CHECK dies with a fatal error if condition is not true.  It is *not*
+// controlled by NDEBUG, so the check will be executed regardless of
+// compilation mode.
+//
+// We make sure CHECK et al. always evaluates their arguments, as
+// doing CHECK(FunctionWithSideEffect()) is a common idiom.
+
+#define CHECK(condition)                       \
+  LAZY_STREAM(LOG_STREAM(FATAL), !(condition)) \
+      << "Check failed: " #condition ". "
+
+#define PCHECK(condition)                       \
+  LAZY_STREAM(PLOG_STREAM(FATAL), !(condition)) \
+      << "Check failed: " #condition ". "
+
+// Helper macro for binary operators.
+// Don't use this macro directly in your code, use CHECK_EQ et al below.
+//
+// TODO(akalin): Rewrite this so that constructs like if (...)
+// CHECK_EQ(...) else { ... } work properly.
+#define CHECK_OP(name, op, val1, val2)                        \
+  if (std::string* _result = cef::logging::Check##name##Impl( \
+          (val1), (val2), #val1 " " #op " " #val2))           \
+  cef::logging::LogMessage(__FILE__, __LINE__, _result).stream()
+
+// Build the error message string.  This is separate from the "Impl"
+// function template because it is not performance critical and so can
+// be out of line, while the "Impl" code should be inline.  Caller
+// takes ownership of the returned string.
+template <class t1, class t2>
+std::string* MakeCheckOpString(const t1& v1, const t2& v2, const char* names) {
+  std::ostringstream ss;
+  ss << names << " (" << v1 << " vs. " << v2 << ")";
+  std::string* msg = new std::string(ss.str());
+  return msg;
+}
+
+// MSVC doesn't like complex extern templates and DLLs.
+#if !defined(COMPILER_MSVC)
+// Commonly used instantiations of MakeCheckOpString<>. Explicitly instantiated
+// in logging.cc.
+extern template std::string* MakeCheckOpString<int, int>(const int&,
+                                                         const int&,
+                                                         const char* names);
+extern template std::string* MakeCheckOpString<unsigned long, unsigned long>(
+    const unsigned long&,
+    const unsigned long&,
+    const char* names);
+extern template std::string* MakeCheckOpString<unsigned long, unsigned int>(
+    const unsigned long&,
+    const unsigned int&,
+    const char* names);
+extern template std::string* MakeCheckOpString<unsigned int, unsigned long>(
+    const unsigned int&,
+    const unsigned long&,
+    const char* names);
+extern template std::string* MakeCheckOpString<std::string, std::string>(
+    const std::string&,
+    const std::string&,
+    const char* name);
+#endif
+
+// Helper functions for CHECK_OP macro.
+// The (int, int) specialization works around the issue that the compiler
+// will not instantiate the template version of the function on values of
+// unnamed enum type - see comment below.
+#define DEFINE_CHECK_OP_IMPL(name, op)                                       \
+  template <class t1, class t2>                                              \
+  inline std::string* Check##name##Impl(const t1& v1, const t2& v2,          \
+                                        const char* names) {                 \
+    if (v1 op v2)                                                            \
+      return NULL;                                                           \
+    else                                                                     \
+      return MakeCheckOpString(v1, v2, names);                               \
+  }                                                                          \
+  inline std::string* Check##name##Impl(int v1, int v2, const char* names) { \
+    if (v1 op v2)                                                            \
+      return NULL;                                                           \
+    else                                                                     \
+      return MakeCheckOpString(v1, v2, names);                               \
+  }
+DEFINE_CHECK_OP_IMPL(EQ, ==)
+DEFINE_CHECK_OP_IMPL(NE, !=)
+DEFINE_CHECK_OP_IMPL(LE, <=)
+DEFINE_CHECK_OP_IMPL(LT, <)
+DEFINE_CHECK_OP_IMPL(GE, >=)
+DEFINE_CHECK_OP_IMPL(GT, >)
+#undef DEFINE_CHECK_OP_IMPL
+
+#define CHECK_EQ(val1, val2) CHECK_OP(EQ, ==, val1, val2)
+#define CHECK_NE(val1, val2) CHECK_OP(NE, !=, val1, val2)
+#define CHECK_LE(val1, val2) CHECK_OP(LE, <=, val1, val2)
+#define CHECK_LT(val1, val2) CHECK_OP(LT, <, val1, val2)
+#define CHECK_GE(val1, val2) CHECK_OP(GE, >=, val1, val2)
+#define CHECK_GT(val1, val2) CHECK_OP(GT, >, val1, val2)
+
+#if defined(NDEBUG)
+#define ENABLE_DLOG 0
+#else
+#define ENABLE_DLOG 1
+#endif
+
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
+#define DCHECK_IS_ON() 0
+#else
+#define DCHECK_IS_ON() 1
+#endif
+
+// Definitions for DLOG et al.
+
+#if ENABLE_DLOG
+
+#define DLOG_IS_ON(severity) LOG_IS_ON(severity)
+#define DLOG_IF(severity, condition) LOG_IF(severity, condition)
+#define DLOG_ASSERT(condition) LOG_ASSERT(condition)
+#define DPLOG_IF(severity, condition) PLOG_IF(severity, condition)
+#define DVLOG_IF(verboselevel, condition) VLOG_IF(verboselevel, condition)
+#define DVPLOG_IF(verboselevel, condition) VPLOG_IF(verboselevel, condition)
+
+#else  // ENABLE_DLOG
+
+// If ENABLE_DLOG is off, we want to avoid emitting any references to
+// |condition| (which may reference a variable defined only if NDEBUG
+// is not defined).  Contrast this with DCHECK et al., which has
+// different behavior.
+
+#define DLOG_IS_ON(severity) false
+#define DLOG_IF(severity, condition) EAT_STREAM_PARAMETERS
+#define DLOG_ASSERT(condition) EAT_STREAM_PARAMETERS
+#define DPLOG_IF(severity, condition) EAT_STREAM_PARAMETERS
+#define DVLOG_IF(verboselevel, condition) EAT_STREAM_PARAMETERS
+#define DVPLOG_IF(verboselevel, condition) EAT_STREAM_PARAMETERS
+
+#endif  // ENABLE_DLOG
+
+// DEBUG_MODE is for uses like
+//   if (DEBUG_MODE) foo.CheckThatFoo();
+// instead of
+//   #ifndef NDEBUG
+//     foo.CheckThatFoo();
+//   #endif
+//
+// We tie its state to ENABLE_DLOG.
+enum { DEBUG_MODE = ENABLE_DLOG };
+
+#undef ENABLE_DLOG
+
+#define DLOG(severity) LAZY_STREAM(LOG_STREAM(severity), DLOG_IS_ON(severity))
+
+#define DPLOG(severity) LAZY_STREAM(PLOG_STREAM(severity), DLOG_IS_ON(severity))
+
+#define DVLOG(verboselevel) DVLOG_IF(verboselevel, VLOG_IS_ON(verboselevel))
+
+#define DVPLOG(verboselevel) DVPLOG_IF(verboselevel, VLOG_IS_ON(verboselevel))
+
+// Definitions for DCHECK et al.
+
+#if DCHECK_IS_ON()
+
+#define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
+  COMPACT_GOOGLE_LOG_EX_FATAL(ClassName, ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_FATAL
+const LogSeverity LOG_DCHECK = LOG_FATAL;
+
+#else  // DCHECK_IS_ON()
+
+// These are just dummy values.
+#define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
+  COMPACT_GOOGLE_LOG_EX_INFO(ClassName, ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_INFO
+const LogSeverity LOG_DCHECK = LOG_INFO;
+
+#endif  // DCHECK_IS_ON()
+
+// DCHECK et al. make sure to reference |condition| regardless of
+// whether DCHECKs are enabled; this is so that we don't get unused
+// variable warnings if the only use of a variable is in a DCHECK.
+// This behavior is different from DLOG_IF et al.
+
+#define DCHECK(condition)                                         \
+  LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON() && !(condition)) \
+      << "Check failed: " #condition ". "
+
+#define DPCHECK(condition)                                         \
+  LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON() && !(condition)) \
+      << "Check failed: " #condition ". "
+
+// Helper macro for binary operators.
+// Don't use this macro directly in your code, use DCHECK_EQ et al below.
+#define DCHECK_OP(name, op, val1, val2)                                    \
+  if (DCHECK_IS_ON())                                                      \
+    if (std::string* _result = cef::logging::Check##name##Impl(            \
+            (val1), (val2), #val1 " " #op " " #val2))                      \
+  cef::logging::LogMessage(__FILE__, __LINE__, ::cef::logging::LOG_DCHECK, \
+                           _result)                                        \
+      .stream()
+
+// Equality/Inequality checks - compare two values, and log a
+// LOG_DCHECK message including the two values when the result is not
+// as expected.  The values must have operator<<(ostream, ...)
+// defined.
+//
+// You may append to the error message like so:
+//   DCHECK_NE(1, 2) << ": The world must be ending!";
+//
+// We are very careful to ensure that each argument is evaluated exactly
+// once, and that anything which is legal to pass as a function argument is
+// legal here.  In particular, the arguments may be temporary expressions
+// which will end up being destroyed at the end of the apparent statement,
+// for example:
+//   DCHECK_EQ(string("abc")[1], 'b');
+//
+// WARNING: These may not compile correctly if one of the arguments is a pointer
+// and the other is NULL. To work around this, simply static_cast NULL to the
+// type of the desired pointer.
+
+#define DCHECK_EQ(val1, val2) DCHECK_OP(EQ, ==, val1, val2)
+#define DCHECK_NE(val1, val2) DCHECK_OP(NE, !=, val1, val2)
+#define DCHECK_LE(val1, val2) DCHECK_OP(LE, <=, val1, val2)
+#define DCHECK_LT(val1, val2) DCHECK_OP(LT, <, val1, val2)
+#define DCHECK_GE(val1, val2) DCHECK_OP(GE, >=, val1, val2)
+#define DCHECK_GT(val1, val2) DCHECK_OP(GT, >, val1, val2)
+
+#define NOTREACHED() DCHECK(false)
+
+// Redefine the standard assert to use our nice log files
+#undef assert
+#define assert(x) DLOG_ASSERT(x)
+
+// This class more or less represents a particular log message.  You
+// create an instance of LogMessage and then stream stuff to it.
+// When you finish streaming to it, ~LogMessage is called and the
+// full message gets streamed to the appropriate destination.
+//
+// You shouldn't actually use LogMessage's constructor to log things,
+// though.  You should use the LOG() macro (and variants thereof)
+// above.
+class LogMessage {
+ public:
+  // Used for LOG(severity).
+  LogMessage(const char* file, int line, LogSeverity severity);
+
+  // Used for CHECK_EQ(), etc. Takes ownership of the given string.
+  // Implied severity = LOG_FATAL.
+  LogMessage(const char* file, int line, std::string* result);
+
+  // Used for DCHECK_EQ(), etc. Takes ownership of the given string.
+  LogMessage(const char* file,
+             int line,
+             LogSeverity severity,
+             std::string* result);
+
+  LogMessage(const LogMessage&) = delete;
+  LogMessage& operator=(const LogMessage&) = delete;
+
+  ~LogMessage();
+
+  std::ostream& stream() { return stream_; }
+
+ private:
+  LogSeverity severity_;
+  std::ostringstream stream_;
+
+  // The file and line information passed in to the constructor.
+  const char* file_;
+  const int line_;
+
+#if defined(OS_WIN)
+  // Stores the current value of GetLastError in the constructor and restores
+  // it in the destructor by calling SetLastError.
+  // This is useful since the LogMessage class uses a lot of Win32 calls
+  // that will lose the value of GLE and the code that called the log function
+  // will have lost the thread error value when the log call returns.
+  class SaveLastError {
+   public:
+    SaveLastError();
+    ~SaveLastError();
+
+    unsigned long get_error() const { return last_error_; }
+
+   protected:
+    unsigned long last_error_;
+  };
+
+  SaveLastError last_error_;
+#endif
+};
+
+// A non-macro interface to the log facility; (useful
+// when the logging level is not a compile-time constant).
+inline void LogAtLevel(int const log_level, std::string const& msg) {
+  LogMessage(__FILE__, __LINE__, log_level).stream() << msg;
+}
+
+// This class is used to explicitly ignore values in the conditional
+// logging macros.  This avoids compiler warnings like "value computed
+// is not used" and "statement has no effect".
+class LogMessageVoidify {
+ public:
+  LogMessageVoidify() {}
+  // This has to be an operator with a precedence lower than << but
+  // higher than ?:
+  void operator&(std::ostream&) {}
+};
+
+#if defined(OS_WIN)
+typedef unsigned long SystemErrorCode;
+#elif defined(OS_POSIX)
+typedef int SystemErrorCode;
+#endif
+
+// Alias for ::GetLastError() on Windows and errno on POSIX. Avoids having to
+// pull in windows.h just for GetLastError() and DWORD.
+SystemErrorCode GetLastSystemErrorCode();
+std::string SystemErrorCodeToString(SystemErrorCode error_code);
+
+#if defined(OS_WIN)
+// Appends a formatted system message of the GetLastError() type.
+class Win32ErrorLogMessage {
+ public:
+  Win32ErrorLogMessage(const char* file,
+                       int line,
+                       LogSeverity severity,
+                       SystemErrorCode err);
+
+  Win32ErrorLogMessage(const Win32ErrorLogMessage&) = delete;
+  Win32ErrorLogMessage& operator=(const Win32ErrorLogMessage&) = delete;
+
+  // Appends the error message before destructing the encapsulated class.
+  ~Win32ErrorLogMessage();
+
+  std::ostream& stream() { return log_message_.stream(); }
+
+ private:
+  SystemErrorCode err_;
+  LogMessage log_message_;
+};
+#elif defined(OS_POSIX)
+// Appends a formatted system message of the errno type
+class ErrnoLogMessage {
+ public:
+  ErrnoLogMessage(const char* file,
+                  int line,
+                  LogSeverity severity,
+                  SystemErrorCode err);
+
+  ErrnoLogMessage(const ErrnoLogMessage&) = delete;
+  ErrnoLogMessage& operator=(const ErrnoLogMessage&) = delete;
+
+  // Appends the error message before destructing the encapsulated class.
+  ~ErrnoLogMessage();
+
+  std::ostream& stream() { return log_message_.stream(); }
+
+ private:
+  SystemErrorCode err_;
+  LogMessage log_message_;
+};
+#endif  // OS_WIN
+
+}  // namespace logging
+}  // namespace cef
+
+// These functions are provided as a convenience for logging, which is where we
+// use streams (it is against Google style to use streams in other places). It
+// is designed to allow you to emit non-ASCII Unicode strings to the log file,
+// which is normally ASCII. It is relatively slow, so try not to use it for
+// common cases. Non-ASCII characters will be converted to UTF-8 by these
+// operators.
+std::ostream& operator<<(std::ostream& out, const wchar_t* wstr);
+inline std::ostream& operator<<(std::ostream& out, const std::wstring& wstr) {
+  return out << wstr.c_str();
+}
+
+// The NOTIMPLEMENTED() macro annotates codepaths which have
+// not been implemented yet.
+//
+// The implementation of this macro is controlled by NOTIMPLEMENTED_POLICY:
+//   0 -- Do nothing (stripped by compiler)
+//   1 -- Warn at compile time
+//   2 -- Fail at compile time
+//   3 -- Fail at runtime (DCHECK)
+//   4 -- [default] LOG(ERROR) at runtime
+//   5 -- LOG(ERROR) at runtime, only once per call-site
+
+#ifndef NOTIMPLEMENTED_POLICY
+#if defined(OS_ANDROID) && defined(OFFICIAL_BUILD)
+#define NOTIMPLEMENTED_POLICY 0
+#else
+// Select default policy: LOG(ERROR)
+#define NOTIMPLEMENTED_POLICY 4
+#endif
+#endif
+
+#if defined(COMPILER_GCC)
+// On Linux, with GCC, we can use __PRETTY_FUNCTION__ to get the demangled name
+// of the current function in the NOTIMPLEMENTED message.
+#define NOTIMPLEMENTED_MSG "Not implemented reached in " << __PRETTY_FUNCTION__
+#else
+#define NOTIMPLEMENTED_MSG "NOT IMPLEMENTED"
+#endif
+
+#if NOTIMPLEMENTED_POLICY == 0
+#define NOTIMPLEMENTED() EAT_STREAM_PARAMETERS
+#elif NOTIMPLEMENTED_POLICY == 1
+// TODO, figure out how to generate a warning
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 2
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 3
+#define NOTIMPLEMENTED() NOTREACHED()
+#elif NOTIMPLEMENTED_POLICY == 4
+#define NOTIMPLEMENTED() LOG(ERROR) << NOTIMPLEMENTED_MSG
+#elif NOTIMPLEMENTED_POLICY == 5
+#define NOTIMPLEMENTED()                               \
+  do {                                                 \
+    static bool logged_once = false;                   \
+    LOG_IF(ERROR, !logged_once) << NOTIMPLEMENTED_MSG; \
+    logged_once = true;                                \
+  } while (0);                                         \
+  EAT_STREAM_PARAMETERS
+#endif
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_LOGGING_H_

Thirdparty/libcef/include/base/cef_macros.h

@@ -0,0 +1,63 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_MACROS_H_
+#define CEF_INCLUDE_BASE_CEF_MACROS_H_
+#pragma once
+
+#if !defined(USING_CHROMIUM_INCLUDES)
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+// ALL DISALLOW_xxx MACROS ARE DEPRECATED; DO NOT USE IN NEW CODE.
+// Use explicit deletions instead.  See the section on copyability/movability in
+// //styleguide/c++/c++-dos-and-donts.md for more information.
+
+// DEPRECATED: See above. Makes a class uncopyable.
+#define DISALLOW_COPY(TypeName) TypeName(const TypeName&) = delete
+
+// DEPRECATED: See above. Makes a class unassignable.
+#define DISALLOW_ASSIGN(TypeName) TypeName& operator=(const TypeName&) = delete
+
+// DEPRECATED: See above. Makes a class uncopyable and unassignable.
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+  DISALLOW_COPY(TypeName);                 \
+  DISALLOW_ASSIGN(TypeName)
+
+// DEPRECATED: See above. Disallow all implicit constructors, namely the
+// default constructor, copy constructor and operator= functions.
+#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
+  TypeName() = delete;                           \
+  DISALLOW_COPY_AND_ASSIGN(TypeName)
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_MACROS_H_

Thirdparty/libcef/include/base/cef_platform_thread.h

@@ -0,0 +1,101 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// WARNING: You should *NOT* be using this class directly.  PlatformThread is
+// the low-level platform-specific abstraction to the OS's threading interface.
+// You should instead be using a message-loop driven Thread, see thread.h.
+
+#ifndef CEF_INCLUDE_BASE_PLATFORM_THREAD_H_
+#define CEF_INCLUDE_BASE_PLATFORM_THREAD_H_
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/threading/platform_thread.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include "include/base/cef_basictypes.h"
+#include "include/base/cef_build.h"
+#include "include/internal/cef_thread_internal.h"
+
+namespace base {
+
+// Used for logging. Always an integer value.
+typedef cef_platform_thread_id_t PlatformThreadId;
+
+// Used for thread checking and debugging.
+// Meant to be as fast as possible.
+// These are produced by PlatformThread::CurrentRef(), and used to later
+// check if we are on the same thread or not by using ==. These are safe
+// to copy between threads, but can't be copied to another process as they
+// have no meaning there. Also, the internal identifier can be re-used
+// after a thread dies, so a PlatformThreadRef cannot be reliably used
+// to distinguish a new thread from an old, dead thread.
+class PlatformThreadRef {
+ public:
+  typedef cef_platform_thread_handle_t RefType;
+
+  PlatformThreadRef() : id_(0) {}
+
+  explicit PlatformThreadRef(RefType id) : id_(id) {}
+
+  bool operator==(PlatformThreadRef other) const { return id_ == other.id_; }
+
+  bool is_null() const { return id_ == 0; }
+
+ private:
+  RefType id_;
+};
+
+// A namespace for low-level thread functions.
+// Chromium uses a class with static methods but CEF uses an actual namespace
+// to avoid linker problems with the sandbox libaries on Windows.
+namespace PlatformThread {
+
+// Gets the current thread id, which may be useful for logging purposes.
+inline PlatformThreadId CurrentId() {
+  return cef_get_current_platform_thread_id();
+}
+
+// Gets the current thread reference, which can be used to check if
+// we're on the right thread quickly.
+inline PlatformThreadRef CurrentRef() {
+  return PlatformThreadRef(cef_get_current_platform_thread_handle());
+}
+
+}  // namespace PlatformThread
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_PLATFORM_THREAD_H_

Thirdparty/libcef/include/base/cef_ptr_util.h

@@ -0,0 +1,58 @@
+// Copyright (c) 2021 Marshall A. Greenblatt. Portions copyright (c) 2015
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef INCLUDE_BASE_CEF_PTR_UTIL_H_
+#define INCLUDE_BASE_CEF_PTR_UTIL_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/memory/ptr_util.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <memory>
+#include <utility>
+
+namespace base {
+
+// Helper to transfer ownership of a raw pointer to a std::unique_ptr<T>.
+// Note that std::unique_ptr<T> has very different semantics from
+// std::unique_ptr<T[]>: do not use this helper for array allocations.
+template <typename T>
+std::unique_ptr<T> WrapUnique(T* ptr) {
+  return std::unique_ptr<T>(ptr);
+}
+
+}  // namespace base
+
+#endif  // INCLUDE_BASE_CEF_PTR_UTIL_H_

Thirdparty/libcef/include/base/cef_ref_counted.h

@@ -0,0 +1,496 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#ifndef CEF_INCLUDE_BASE_CEF_REF_COUNTED_H_
+#define CEF_INCLUDE_BASE_CEF_REF_COUNTED_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/memory/ref_counted.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <stddef.h>
+
+#include <utility>
+
+#include "include/base/cef_atomic_ref_count.h"
+#include "include/base/cef_build.h"
+#include "include/base/cef_compiler_specific.h"
+#include "include/base/cef_logging.h"
+#include "include/base/cef_scoped_refptr.h"
+#include "include/base/cef_template_util.h"
+#include "include/base/cef_thread_checker.h"
+
+namespace base {
+namespace cef_subtle {
+
+class RefCountedBase {
+ public:
+  bool HasOneRef() const { return ref_count_ == 1; }
+  bool HasAtLeastOneRef() const { return ref_count_ >= 1; }
+
+ protected:
+  explicit RefCountedBase(StartRefCountFromZeroTag) {
+#if DCHECK_IS_ON()
+    thread_checker_.DetachFromThread();
+#endif
+  }
+
+  explicit RefCountedBase(StartRefCountFromOneTag) : ref_count_(1) {
+#if DCHECK_IS_ON()
+    needs_adopt_ref_ = true;
+    thread_checker_.DetachFromThread();
+#endif
+  }
+
+  RefCountedBase(const RefCountedBase&) = delete;
+  RefCountedBase& operator=(const RefCountedBase&) = delete;
+
+  ~RefCountedBase() {
+#if DCHECK_IS_ON()
+    DCHECK(in_dtor_) << "RefCounted object deleted without calling Release()";
+#endif
+  }
+
+  void AddRef() const {
+#if DCHECK_IS_ON()
+    DCHECK(!in_dtor_);
+    DCHECK(!needs_adopt_ref_)
+        << "This RefCounted object is created with non-zero reference count."
+        << " The first reference to such a object has to be made by AdoptRef or"
+        << " MakeRefCounted.";
+    if (ref_count_ >= 1) {
+      DCHECK(CalledOnValidThread());
+    }
+#endif
+
+    AddRefImpl();
+  }
+
+  // Returns true if the object should self-delete.
+  bool Release() const {
+    ReleaseImpl();
+
+#if DCHECK_IS_ON()
+    DCHECK(!in_dtor_);
+    if (ref_count_ == 0)
+      in_dtor_ = true;
+
+    if (ref_count_ >= 1)
+      DCHECK(CalledOnValidThread());
+    if (ref_count_ == 1)
+      thread_checker_.DetachFromThread();
+#endif
+
+    return ref_count_ == 0;
+  }
+
+  // Returns true if it is safe to read or write the object, from a thread
+  // safety standpoint. Should be DCHECK'd from the methods of RefCounted
+  // classes if there is a danger of objects being shared across threads.
+  //
+  // This produces fewer false positives than adding a separate ThreadChecker
+  // into the subclass, because it automatically detaches from the thread when
+  // the reference count is 1 (and never fails if there is only one reference).
+  //
+  // This means unlike a separate ThreadChecker, it will permit a singly
+  // referenced object to be passed between threads (not holding a reference on
+  // the sending thread), but will trap if the sending thread holds onto a
+  // reference, or if the object is accessed from multiple threads
+  // simultaneously.
+  bool IsOnValidThread() const {
+#if DCHECK_IS_ON()
+    return ref_count_ <= 1 || CalledOnValidThread();
+#else
+    return true;
+#endif
+  }
+
+ private:
+  template <typename U>
+  friend scoped_refptr<U> base::AdoptRef(U*);
+
+  void Adopted() const {
+#if DCHECK_IS_ON()
+    DCHECK(needs_adopt_ref_);
+    needs_adopt_ref_ = false;
+#endif
+  }
+
+#if defined(ARCH_CPU_64_BITS)
+  void AddRefImpl() const;
+  void ReleaseImpl() const;
+#else
+  void AddRefImpl() const { ++ref_count_; }
+  void ReleaseImpl() const { --ref_count_; }
+#endif
+
+#if DCHECK_IS_ON()
+  bool CalledOnValidThread() const;
+#endif
+
+  mutable uint32_t ref_count_ = 0;
+  static_assert(std::is_unsigned<decltype(ref_count_)>::value,
+                "ref_count_ must be an unsigned type.");
+
+#if DCHECK_IS_ON()
+  mutable bool needs_adopt_ref_ = false;
+  mutable bool in_dtor_ = false;
+  mutable ThreadChecker thread_checker_;
+#endif
+};
+
+class RefCountedThreadSafeBase {
+ public:
+  bool HasOneRef() const;
+  bool HasAtLeastOneRef() const;
+
+ protected:
+  explicit constexpr RefCountedThreadSafeBase(StartRefCountFromZeroTag) {}
+  explicit constexpr RefCountedThreadSafeBase(StartRefCountFromOneTag)
+      : ref_count_(1) {
+#if DCHECK_IS_ON()
+    needs_adopt_ref_ = true;
+#endif
+  }
+
+  RefCountedThreadSafeBase(const RefCountedThreadSafeBase&) = delete;
+  RefCountedThreadSafeBase& operator=(const RefCountedThreadSafeBase&) = delete;
+
+#if DCHECK_IS_ON()
+  ~RefCountedThreadSafeBase();
+#else
+  ~RefCountedThreadSafeBase() = default;
+#endif
+
+// Release and AddRef are suitable for inlining on X86 because they generate
+// very small code threads. On other platforms (ARM), it causes a size
+// regression and is probably not worth it.
+#if defined(ARCH_CPU_X86_FAMILY)
+  // Returns true if the object should self-delete.
+  bool Release() const { return ReleaseImpl(); }
+  void AddRef() const { AddRefImpl(); }
+  void AddRefWithCheck() const { AddRefWithCheckImpl(); }
+#else
+  // Returns true if the object should self-delete.
+  bool Release() const;
+  void AddRef() const;
+  void AddRefWithCheck() const;
+#endif
+
+ private:
+  template <typename U>
+  friend scoped_refptr<U> base::AdoptRef(U*);
+
+  void Adopted() const {
+#if DCHECK_IS_ON()
+    DCHECK(needs_adopt_ref_);
+    needs_adopt_ref_ = false;
+#endif
+  }
+
+  ALWAYS_INLINE void AddRefImpl() const {
+#if DCHECK_IS_ON()
+    DCHECK(!in_dtor_);
+    DCHECK(!needs_adopt_ref_)
+        << "This RefCounted object is created with non-zero reference count."
+        << " The first reference to such a object has to be made by AdoptRef or"
+        << " MakeRefCounted.";
+#endif
+    ref_count_.Increment();
+  }
+
+  ALWAYS_INLINE void AddRefWithCheckImpl() const {
+#if DCHECK_IS_ON()
+    DCHECK(!in_dtor_);
+    DCHECK(!needs_adopt_ref_)
+        << "This RefCounted object is created with non-zero reference count."
+        << " The first reference to such a object has to be made by AdoptRef or"
+        << " MakeRefCounted.";
+#endif
+    CHECK(ref_count_.Increment() > 0);
+  }
+
+  ALWAYS_INLINE bool ReleaseImpl() const {
+#if DCHECK_IS_ON()
+    DCHECK(!in_dtor_);
+    DCHECK(!ref_count_.IsZero());
+#endif
+    if (!ref_count_.Decrement()) {
+#if DCHECK_IS_ON()
+      in_dtor_ = true;
+#endif
+      return true;
+    }
+    return false;
+  }
+
+  mutable AtomicRefCount ref_count_{0};
+#if DCHECK_IS_ON()
+  mutable bool needs_adopt_ref_ = false;
+  mutable bool in_dtor_ = false;
+#endif
+};
+
+// ScopedAllowCrossThreadRefCountAccess disables the check documented on
+// RefCounted below for rare pre-existing use cases where thread-safety was
+// guaranteed through other means (e.g. explicit sequencing of calls across
+// execution threads when bouncing between threads in order). New callers
+// should refrain from using this (callsites handling thread-safety through
+// locks should use RefCountedThreadSafe per the overhead of its atomics being
+// negligible compared to locks anyways and callsites doing explicit sequencing
+// should properly std::move() the ref to avoid hitting this check).
+// TODO(tzik): Cleanup existing use cases and remove
+// ScopedAllowCrossThreadRefCountAccess.
+class ScopedAllowCrossThreadRefCountAccess final {
+ public:
+#if DCHECK_IS_ON()
+  ScopedAllowCrossThreadRefCountAccess();
+  ~ScopedAllowCrossThreadRefCountAccess();
+#else
+  ScopedAllowCrossThreadRefCountAccess() {}
+  ~ScopedAllowCrossThreadRefCountAccess() {}
+#endif
+};
+
+}  // namespace cef_subtle
+
+using ScopedAllowCrossThreadRefCountAccess =
+    cef_subtle::ScopedAllowCrossThreadRefCountAccess;
+
+//
+// A base class for reference counted classes.  Otherwise, known as a cheap
+// knock-off of WebKit's RefCounted<T> class.  To use this, just extend your
+// class from it like so:
+//
+//   class MyFoo : public base::RefCounted<MyFoo> {
+//    ...
+//    private:
+//     friend class base::RefCounted<MyFoo>;
+//     ~MyFoo();
+//   };
+//
+// Usage Notes:
+// 1. You should always make your destructor non-public, to avoid any code
+// deleting the object accidentally while there are references to it.
+// 2. You should always make the ref-counted base class a friend of your class,
+// so that it can access the destructor.
+//
+// The ref count manipulation to RefCounted is NOT thread safe and has DCHECKs
+// to trap unsafe cross thread usage. A subclass instance of RefCounted can be
+// passed to another execution thread only when its ref count is 1. If the ref
+// count is more than 1, the RefCounted class verifies the ref updates are made
+// on the same execution thread as the previous ones. The subclass can also
+// manually call IsOnValidThread to trap other non-thread-safe accesses; see
+// the documentation for that method.
+//
+//
+// The reference count starts from zero by default, and we intended to migrate
+// to start-from-one ref count. Put REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE() to
+// the ref counted class to opt-in.
+//
+// If an object has start-from-one ref count, the first scoped_refptr need to be
+// created by base::AdoptRef() or base::MakeRefCounted(). We can use
+// base::MakeRefCounted() to create create both type of ref counted object.
+//
+// The motivations to use start-from-one ref count are:
+//  - Start-from-one ref count doesn't need the ref count increment for the
+//    first reference.
+//  - It can detect an invalid object acquisition for a being-deleted object
+//    that has zero ref count. That tends to happen on custom deleter that
+//    delays the deletion.
+//    TODO(tzik): Implement invalid acquisition detection.
+//  - Behavior parity to Blink's WTF::RefCounted, whose count starts from one.
+//    And start-from-one ref count is a step to merge WTF::RefCounted into
+//    base::RefCounted.
+//
+#define REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE()                 \
+  static constexpr ::base::cef_subtle::StartRefCountFromOneTag \
+      kRefCountPreference = ::base::cef_subtle::kStartRefCountFromOneTag
+
+template <class T, typename Traits>
+class RefCounted;
+
+template <typename T>
+struct DefaultRefCountedTraits {
+  static void Destruct(const T* x) {
+    RefCounted<T, DefaultRefCountedTraits>::DeleteInternal(x);
+  }
+};
+
+template <class T, typename Traits = DefaultRefCountedTraits<T>>
+class RefCounted : public cef_subtle::RefCountedBase {
+ public:
+  static constexpr cef_subtle::StartRefCountFromZeroTag kRefCountPreference =
+      cef_subtle::kStartRefCountFromZeroTag;
+
+  RefCounted() : cef_subtle::RefCountedBase(T::kRefCountPreference) {}
+
+  RefCounted(const RefCounted&) = delete;
+  RefCounted& operator=(const RefCounted&) = delete;
+
+  void AddRef() const { cef_subtle::RefCountedBase::AddRef(); }
+
+  void Release() const {
+    if (cef_subtle::RefCountedBase::Release()) {
+      // Prune the code paths which the static analyzer may take to simulate
+      // object destruction. Use-after-free errors aren't possible given the
+      // lifetime guarantees of the refcounting system.
+      ANALYZER_SKIP_THIS_PATH();
+
+      Traits::Destruct(static_cast<const T*>(this));
+    }
+  }
+
+ protected:
+  ~RefCounted() = default;
+
+ private:
+  friend struct DefaultRefCountedTraits<T>;
+  template <typename U>
+  static void DeleteInternal(const U* x) {
+    delete x;
+  }
+};
+
+// Forward declaration.
+template <class T, typename Traits>
+class RefCountedThreadSafe;
+
+// Default traits for RefCountedThreadSafe<T>.  Deletes the object when its ref
+// count reaches 0.  Overload to delete it on a different thread etc.
+template <typename T>
+struct DefaultRefCountedThreadSafeTraits {
+  static void Destruct(const T* x) {
+    // Delete through RefCountedThreadSafe to make child classes only need to be
+    // friend with RefCountedThreadSafe instead of this struct, which is an
+    // implementation detail.
+    RefCountedThreadSafe<T, DefaultRefCountedThreadSafeTraits>::DeleteInternal(
+        x);
+  }
+};
+
+//
+// A thread-safe variant of RefCounted<T>
+//
+//   class MyFoo : public base::RefCountedThreadSafe<MyFoo> {
+//    ...
+//   };
+//
+// If you're using the default trait, then you should add compile time
+// asserts that no one else is deleting your object.  i.e.
+//    private:
+//     friend class base::RefCountedThreadSafe<MyFoo>;
+//     ~MyFoo();
+//
+// We can use REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE() with RefCountedThreadSafe
+// too. See the comment above the RefCounted definition for details.
+template <class T, typename Traits = DefaultRefCountedThreadSafeTraits<T>>
+class RefCountedThreadSafe : public cef_subtle::RefCountedThreadSafeBase {
+ public:
+  static constexpr cef_subtle::StartRefCountFromZeroTag kRefCountPreference =
+      cef_subtle::kStartRefCountFromZeroTag;
+
+  explicit RefCountedThreadSafe()
+      : cef_subtle::RefCountedThreadSafeBase(T::kRefCountPreference) {}
+
+  RefCountedThreadSafe(const RefCountedThreadSafe&) = delete;
+  RefCountedThreadSafe& operator=(const RefCountedThreadSafe&) = delete;
+
+  void AddRef() const { AddRefImpl(T::kRefCountPreference); }
+
+  void Release() const {
+    if (cef_subtle::RefCountedThreadSafeBase::Release()) {
+      ANALYZER_SKIP_THIS_PATH();
+      Traits::Destruct(static_cast<const T*>(this));
+    }
+  }
+
+ protected:
+  ~RefCountedThreadSafe() = default;
+
+ private:
+  friend struct DefaultRefCountedThreadSafeTraits<T>;
+  template <typename U>
+  static void DeleteInternal(const U* x) {
+    delete x;
+  }
+
+  void AddRefImpl(cef_subtle::StartRefCountFromZeroTag) const {
+    cef_subtle::RefCountedThreadSafeBase::AddRef();
+  }
+
+  void AddRefImpl(cef_subtle::StartRefCountFromOneTag) const {
+    cef_subtle::RefCountedThreadSafeBase::AddRefWithCheck();
+  }
+};
+
+//
+// A thread-safe wrapper for some piece of data so we can place other
+// things in scoped_refptrs<>.
+//
+template <typename T>
+class RefCountedData
+    : public base::RefCountedThreadSafe<base::RefCountedData<T>> {
+ public:
+  RefCountedData() : data() {}
+  RefCountedData(const T& in_value) : data(in_value) {}
+  RefCountedData(T&& in_value) : data(std::move(in_value)) {}
+  template <typename... Args>
+  explicit RefCountedData(in_place_t, Args&&... args)
+      : data(std::forward<Args>(args)...) {}
+
+  T data;
+
+ private:
+  friend class base::RefCountedThreadSafe<base::RefCountedData<T>>;
+  ~RefCountedData() = default;
+};
+
+template <typename T>
+bool operator==(const RefCountedData<T>& lhs, const RefCountedData<T>& rhs) {
+  return lhs.data == rhs.data;
+}
+
+template <typename T>
+bool operator!=(const RefCountedData<T>& lhs, const RefCountedData<T>& rhs) {
+  return !(lhs == rhs);
+}
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_REF_COUNTED_H_

Thirdparty/libcef/include/base/cef_scoped_refptr.h

@@ -0,0 +1,411 @@
+// Copyright (c) 2017 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_SCOPED_REFPTR_H_
+#define CEF_INCLUDE_BASE_CEF_SCOPED_REFPTR_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/memory/scoped_refptr.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <stddef.h>
+
+#include <iosfwd>
+#include <type_traits>
+#include <utility>
+
+#include "include/base/cef_compiler_specific.h"
+#include "include/base/cef_logging.h"
+
+template <class T>
+class scoped_refptr;
+
+namespace base {
+
+template <class, typename>
+class RefCounted;
+template <class, typename>
+class RefCountedThreadSafe;
+class SequencedTaskRunner;
+class WrappedPromise;
+
+template <typename T>
+scoped_refptr<T> AdoptRef(T* t);
+
+namespace internal {
+
+class BasePromise;
+
+}  // namespace internal
+
+namespace cef_subtle {
+
+enum AdoptRefTag { kAdoptRefTag };
+enum StartRefCountFromZeroTag { kStartRefCountFromZeroTag };
+enum StartRefCountFromOneTag { kStartRefCountFromOneTag };
+
+template <typename T, typename U, typename V>
+constexpr bool IsRefCountPreferenceOverridden(const T*,
+                                              const RefCounted<U, V>*) {
+  return !std::is_same<std::decay_t<decltype(T::kRefCountPreference)>,
+                       std::decay_t<decltype(U::kRefCountPreference)>>::value;
+}
+
+template <typename T, typename U, typename V>
+constexpr bool IsRefCountPreferenceOverridden(
+    const T*,
+    const RefCountedThreadSafe<U, V>*) {
+  return !std::is_same<std::decay_t<decltype(T::kRefCountPreference)>,
+                       std::decay_t<decltype(U::kRefCountPreference)>>::value;
+}
+
+constexpr bool IsRefCountPreferenceOverridden(...) {
+  return false;
+}
+
+}  // namespace cef_subtle
+
+// Creates a scoped_refptr from a raw pointer without incrementing the reference
+// count. Use this only for a newly created object whose reference count starts
+// from 1 instead of 0.
+template <typename T>
+scoped_refptr<T> AdoptRef(T* obj) {
+  using Tag = std::decay_t<decltype(T::kRefCountPreference)>;
+  static_assert(std::is_same<cef_subtle::StartRefCountFromOneTag, Tag>::value,
+                "Use AdoptRef only if the reference count starts from one.");
+
+  DCHECK(obj);
+  DCHECK(obj->HasOneRef());
+  obj->Adopted();
+  return scoped_refptr<T>(obj, cef_subtle::kAdoptRefTag);
+}
+
+namespace cef_subtle {
+
+template <typename T>
+scoped_refptr<T> AdoptRefIfNeeded(T* obj, StartRefCountFromZeroTag) {
+  return scoped_refptr<T>(obj);
+}
+
+template <typename T>
+scoped_refptr<T> AdoptRefIfNeeded(T* obj, StartRefCountFromOneTag) {
+  return AdoptRef(obj);
+}
+
+}  // namespace cef_subtle
+
+// Constructs an instance of T, which is a ref counted type, and wraps the
+// object into a scoped_refptr<T>.
+template <typename T, typename... Args>
+scoped_refptr<T> MakeRefCounted(Args&&... args) {
+  T* obj = new T(std::forward<Args>(args)...);
+  return cef_subtle::AdoptRefIfNeeded(obj, T::kRefCountPreference);
+}
+
+// Takes an instance of T, which is a ref counted type, and wraps the object
+// into a scoped_refptr<T>.
+template <typename T>
+scoped_refptr<T> WrapRefCounted(T* t) {
+  return scoped_refptr<T>(t);
+}
+
+}  // namespace base
+
+//
+// A smart pointer class for reference counted objects.  Use this class instead
+// of calling AddRef and Release manually on a reference counted object to
+// avoid common memory leaks caused by forgetting to Release an object
+// reference.  Sample usage:
+//
+//   class MyFoo : public RefCounted<MyFoo> {
+//    ...
+//    private:
+//     friend class RefCounted<MyFoo>;  // Allow destruction by RefCounted<>.
+//     ~MyFoo();                        // Destructor must be private/protected.
+//   };
+//
+//   void some_function() {
+//     scoped_refptr<MyFoo> foo = MakeRefCounted<MyFoo>();
+//     foo->Method(param);
+//     // |foo| is released when this function returns
+//   }
+//
+//   void some_other_function() {
+//     scoped_refptr<MyFoo> foo = MakeRefCounted<MyFoo>();
+//     ...
+//     foo.reset();  // explicitly releases |foo|
+//     ...
+//     if (foo)
+//       foo->Method(param);
+//   }
+//
+// The above examples show how scoped_refptr<T> acts like a pointer to T.
+// Given two scoped_refptr<T> classes, it is also possible to exchange
+// references between the two objects, like so:
+//
+//   {
+//     scoped_refptr<MyFoo> a = MakeRefCounted<MyFoo>();
+//     scoped_refptr<MyFoo> b;
+//
+//     b.swap(a);
+//     // now, |b| references the MyFoo object, and |a| references nullptr.
+//   }
+//
+// To make both |a| and |b| in the above example reference the same MyFoo
+// object, simply use the assignment operator:
+//
+//   {
+//     scoped_refptr<MyFoo> a = MakeRefCounted<MyFoo>();
+//     scoped_refptr<MyFoo> b;
+//
+//     b = a;
+//     // now, |a| and |b| each own a reference to the same MyFoo object.
+//   }
+//
+// Also see Chromium's ownership and calling conventions:
+// https://chromium.googlesource.com/chromium/src/+/lkgr/styleguide/c++/c++.md#object-ownership-and-calling-conventions
+// Specifically:
+//   If the function (at least sometimes) takes a ref on a refcounted object,
+//   declare the param as scoped_refptr<T>. The caller can decide whether it
+//   wishes to transfer ownership (by calling std::move(t) when passing t) or
+//   retain its ref (by simply passing t directly).
+//   In other words, use scoped_refptr like you would a std::unique_ptr except
+//   in the odd case where it's required to hold on to a ref while handing one
+//   to another component (if a component merely needs to use t on the stack
+//   without keeping a ref: pass t as a raw T*).
+template <class T>
+class TRIVIAL_ABI scoped_refptr {
+ public:
+  typedef T element_type;
+
+  constexpr scoped_refptr() = default;
+
+  // Allow implicit construction from nullptr.
+  constexpr scoped_refptr(std::nullptr_t) {}
+
+  // Constructs from a raw pointer. Note that this constructor allows implicit
+  // conversion from T* to scoped_refptr<T> which is strongly discouraged. If
+  // you are creating a new ref-counted object please use
+  // base::MakeRefCounted<T>() or base::WrapRefCounted<T>(). Otherwise you
+  // should move or copy construct from an existing scoped_refptr<T> to the
+  // ref-counted object.
+  scoped_refptr(T* p) : ptr_(p) {
+    if (ptr_)
+      AddRef(ptr_);
+  }
+
+  // Copy constructor. This is required in addition to the copy conversion
+  // constructor below.
+  scoped_refptr(const scoped_refptr& r) : scoped_refptr(r.ptr_) {}
+
+  // Copy conversion constructor.
+  template <typename U,
+            typename = typename std::enable_if<
+                std::is_convertible<U*, T*>::value>::type>
+  scoped_refptr(const scoped_refptr<U>& r) : scoped_refptr(r.ptr_) {}
+
+  // Move constructor. This is required in addition to the move conversion
+  // constructor below.
+  scoped_refptr(scoped_refptr&& r) noexcept : ptr_(r.ptr_) { r.ptr_ = nullptr; }
+
+  // Move conversion constructor.
+  template <typename U,
+            typename = typename std::enable_if<
+                std::is_convertible<U*, T*>::value>::type>
+  scoped_refptr(scoped_refptr<U>&& r) noexcept : ptr_(r.ptr_) {
+    r.ptr_ = nullptr;
+  }
+
+  ~scoped_refptr() {
+    static_assert(!base::cef_subtle::IsRefCountPreferenceOverridden(
+                      static_cast<T*>(nullptr), static_cast<T*>(nullptr)),
+                  "It's unsafe to override the ref count preference."
+                  " Please remove REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE"
+                  " from subclasses.");
+    if (ptr_)
+      Release(ptr_);
+  }
+
+  T* get() const { return ptr_; }
+
+  T& operator*() const {
+    DCHECK(ptr_);
+    return *ptr_;
+  }
+
+  T* operator->() const {
+    DCHECK(ptr_);
+    return ptr_;
+  }
+
+  scoped_refptr& operator=(std::nullptr_t) {
+    reset();
+    return *this;
+  }
+
+  scoped_refptr& operator=(T* p) { return *this = scoped_refptr(p); }
+
+  // Unified assignment operator.
+  scoped_refptr& operator=(scoped_refptr r) noexcept {
+    swap(r);
+    return *this;
+  }
+
+  // Sets managed object to null and releases reference to the previous managed
+  // object, if it existed.
+  void reset() { scoped_refptr().swap(*this); }
+
+  // Returns the owned pointer (if any), releasing ownership to the caller. The
+  // caller is responsible for managing the lifetime of the reference.
+  T* release() WARN_UNUSED_RESULT;
+
+  void swap(scoped_refptr& r) noexcept { std::swap(ptr_, r.ptr_); }
+
+  explicit operator bool() const { return ptr_ != nullptr; }
+
+  template <typename U>
+  bool operator==(const scoped_refptr<U>& rhs) const {
+    return ptr_ == rhs.get();
+  }
+
+  template <typename U>
+  bool operator!=(const scoped_refptr<U>& rhs) const {
+    return !operator==(rhs);
+  }
+
+  template <typename U>
+  bool operator<(const scoped_refptr<U>& rhs) const {
+    return ptr_ < rhs.get();
+  }
+
+ protected:
+  T* ptr_ = nullptr;
+
+ private:
+  template <typename U>
+  friend scoped_refptr<U> base::AdoptRef(U*);
+  friend class ::base::SequencedTaskRunner;
+
+  // Friend access so these classes can use the constructor below as part of a
+  // binary size optimization.
+  friend class ::base::internal::BasePromise;
+  friend class ::base::WrappedPromise;
+
+  scoped_refptr(T* p, base::cef_subtle::AdoptRefTag) : ptr_(p) {}
+
+  // Friend required for move constructors that set r.ptr_ to null.
+  template <typename U>
+  friend class scoped_refptr;
+
+  // Non-inline helpers to allow:
+  //     class Opaque;
+  //     extern template class scoped_refptr<Opaque>;
+  // Otherwise the compiler will complain that Opaque is an incomplete type.
+  static void AddRef(T* ptr);
+  static void Release(T* ptr);
+};
+
+template <typename T>
+T* scoped_refptr<T>::release() {
+  T* ptr = ptr_;
+  ptr_ = nullptr;
+  return ptr;
+}
+
+// static
+template <typename T>
+void scoped_refptr<T>::AddRef(T* ptr) {
+  ptr->AddRef();
+}
+
+// static
+template <typename T>
+void scoped_refptr<T>::Release(T* ptr) {
+  ptr->Release();
+}
+
+template <typename T, typename U>
+bool operator==(const scoped_refptr<T>& lhs, const U* rhs) {
+  return lhs.get() == rhs;
+}
+
+template <typename T, typename U>
+bool operator==(const T* lhs, const scoped_refptr<U>& rhs) {
+  return lhs == rhs.get();
+}
+
+template <typename T>
+bool operator==(const scoped_refptr<T>& lhs, std::nullptr_t null) {
+  return !static_cast<bool>(lhs);
+}
+
+template <typename T>
+bool operator==(std::nullptr_t null, const scoped_refptr<T>& rhs) {
+  return !static_cast<bool>(rhs);
+}
+
+template <typename T, typename U>
+bool operator!=(const scoped_refptr<T>& lhs, const U* rhs) {
+  return !operator==(lhs, rhs);
+}
+
+template <typename T, typename U>
+bool operator!=(const T* lhs, const scoped_refptr<U>& rhs) {
+  return !operator==(lhs, rhs);
+}
+
+template <typename T>
+bool operator!=(const scoped_refptr<T>& lhs, std::nullptr_t null) {
+  return !operator==(lhs, null);
+}
+
+template <typename T>
+bool operator!=(std::nullptr_t null, const scoped_refptr<T>& rhs) {
+  return !operator==(null, rhs);
+}
+
+template <typename T>
+std::ostream& operator<<(std::ostream& out, const scoped_refptr<T>& p) {
+  return out << p.get();
+}
+
+template <typename T>
+void swap(scoped_refptr<T>& lhs, scoped_refptr<T>& rhs) noexcept {
+  lhs.swap(rhs);
+}
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_SCOPED_REFPTR_H_

Thirdparty/libcef/include/base/cef_template_util.h

@@ -0,0 +1,414 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_CEF_TEMPLATE_UTIL_H_
+#define CEF_INCLUDE_BASE_CEF_TEMPLATE_UTIL_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/template_util.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <stddef.h>
+#include <iosfwd>
+#include <iterator>
+#include <type_traits>
+#include <utility>
+#include <vector>
+
+#include "include/base/cef_build.h"
+
+// Some versions of libstdc++ have partial support for type_traits, but misses
+// a smaller subset while removing some of the older non-standard stuff. Assume
+// that all versions below 5.0 fall in this category, along with one 5.0
+// experimental release. Test for this by consulting compiler major version,
+// the only reliable option available, so theoretically this could fail should
+// you attempt to mix an earlier version of libstdc++ with >= GCC5. But
+// that's unlikely to work out, especially as GCC5 changed ABI.
+#define CR_GLIBCXX_5_0_0 20150123
+#if (defined(__GNUC__) && __GNUC__ < 5) || \
+    (defined(__GLIBCXX__) && __GLIBCXX__ == CR_GLIBCXX_5_0_0)
+#define CR_USE_FALLBACKS_FOR_OLD_EXPERIMENTAL_GLIBCXX
+#endif
+
+// This hacks around using gcc with libc++ which has some incompatibilies.
+// - is_trivially_* doesn't work: https://llvm.org/bugs/show_bug.cgi?id=27538
+// TODO(danakj): Remove this when android builders are all using a newer version
+// of gcc, or the android ndk is updated to a newer libc++ that works with older
+// gcc versions.
+#if !defined(__clang__) && defined(_LIBCPP_VERSION)
+#define CR_USE_FALLBACKS_FOR_GCC_WITH_LIBCXX
+#endif
+
+namespace base {
+
+template <class T> struct is_non_const_reference : std::false_type {};
+template <class T> struct is_non_const_reference<T&> : std::true_type {};
+template <class T> struct is_non_const_reference<const T&> : std::false_type {};
+
+namespace internal {
+
+// Implementation detail of base::void_t below.
+template <typename...>
+struct make_void {
+  using type = void;
+};
+
+}  // namespace internal
+
+// base::void_t is an implementation of std::void_t from C++17.
+//
+// We use |base::internal::make_void| as a helper struct to avoid a C++14
+// defect:
+//   http://en.cppreference.com/w/cpp/types/void_t
+//   http://open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html#1558
+template <typename... Ts>
+using void_t = typename ::base::internal::make_void<Ts...>::type;
+
+namespace internal {
+
+// Uses expression SFINAE to detect whether using operator<< would work.
+template <typename T, typename = void>
+struct SupportsOstreamOperator : std::false_type {};
+template <typename T>
+struct SupportsOstreamOperator<T,
+                               decltype(void(std::declval<std::ostream&>()
+                                             << std::declval<T>()))>
+    : std::true_type {};
+
+template <typename T, typename = void>
+struct SupportsToString : std::false_type {};
+template <typename T>
+struct SupportsToString<T, decltype(void(std::declval<T>().ToString()))>
+    : std::true_type {};
+
+// Used to detect whether the given type is an iterator.  This is normally used
+// with std::enable_if to provide disambiguation for functions that take
+// templatzed iterators as input.
+template <typename T, typename = void>
+struct is_iterator : std::false_type {};
+
+template <typename T>
+struct is_iterator<T,
+                   void_t<typename std::iterator_traits<T>::iterator_category>>
+    : std::true_type {};
+
+// Helper to express preferences in an overload set. If more than one overload
+// are available for a given set of parameters the overload with the higher
+// priority will be chosen.
+template <size_t I>
+struct priority_tag : priority_tag<I - 1> {};
+
+template <>
+struct priority_tag<0> {};
+
+}  // namespace internal
+
+// is_trivially_copyable is especially hard to get right.
+// - Older versions of libstdc++ will fail to have it like they do for other
+//   type traits. This has become a subset of the second point, but used to be
+//   handled independently.
+// - An experimental release of gcc includes most of type_traits but misses
+//   is_trivially_copyable, so we still have to avoid using libstdc++ in this
+//   case, which is covered by CR_USE_FALLBACKS_FOR_OLD_EXPERIMENTAL_GLIBCXX.
+// - When compiling libc++ from before r239653, with a gcc compiler, the
+//   std::is_trivially_copyable can fail. So we need to work around that by not
+//   using the one in libc++ in this case. This is covered by the
+//   CR_USE_FALLBACKS_FOR_GCC_WITH_LIBCXX define, and is discussed in
+//   https://llvm.org/bugs/show_bug.cgi?id=27538#c1 where they point out that
+//   in libc++'s commit r239653 this is fixed by libc++ checking for gcc 5.1.
+// - In both of the above cases we are using the gcc compiler. When defining
+//   this ourselves on compiler intrinsics, the __is_trivially_copyable()
+//   intrinsic is not available on gcc before version 5.1 (see the discussion in
+//   https://llvm.org/bugs/show_bug.cgi?id=27538#c1 again), so we must check for
+//   that version.
+// - When __is_trivially_copyable() is not available because we are on gcc older
+//   than 5.1, we need to fall back to something, so we use __has_trivial_copy()
+//   instead based on what was done one-off in bit_cast() previously.
+
+// TODO(crbug.com/554293): Remove this when all platforms have this in the std
+// namespace and it works with gcc as needed.
+#if defined(CR_USE_FALLBACKS_FOR_OLD_EXPERIMENTAL_GLIBCXX) || \
+    defined(CR_USE_FALLBACKS_FOR_GCC_WITH_LIBCXX)
+template <typename T>
+struct is_trivially_copyable {
+// TODO(danakj): Remove this when android builders are all using a newer version
+// of gcc, or the android ndk is updated to a newer libc++ that does this for
+// us.
+#if _GNUC_VER >= 501
+  static constexpr bool value = __is_trivially_copyable(T);
+#else
+  static constexpr bool value =
+      __has_trivial_copy(T) && __has_trivial_destructor(T);
+#endif
+};
+#else
+template <class T>
+using is_trivially_copyable = std::is_trivially_copyable<T>;
+#endif
+
+#if defined(__GNUC__) && !defined(__clang__) && __GNUC__ <= 7
+// Workaround for g++7 and earlier family.
+// Due to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80654, without this
+// Optional<std::vector<T>> where T is non-copyable causes a compile error.
+// As we know it is not trivially copy constructible, explicitly declare so.
+template <typename T>
+struct is_trivially_copy_constructible
+    : std::is_trivially_copy_constructible<T> {};
+
+template <typename... T>
+struct is_trivially_copy_constructible<std::vector<T...>> : std::false_type {};
+#else
+// Otherwise use std::is_trivially_copy_constructible as is.
+template <typename T>
+using is_trivially_copy_constructible = std::is_trivially_copy_constructible<T>;
+#endif
+
+// base::in_place_t is an implementation of std::in_place_t from
+// C++17. A tag type used to request in-place construction in template vararg
+// constructors.
+
+// Specification:
+// https://en.cppreference.com/w/cpp/utility/in_place
+struct in_place_t {};
+constexpr in_place_t in_place = {};
+
+// base::in_place_type_t is an implementation of std::in_place_type_t from
+// C++17. A tag type used for in-place construction when the type to construct
+// needs to be specified, such as with base::unique_any, designed to be a
+// drop-in replacement.
+
+// Specification:
+// http://en.cppreference.com/w/cpp/utility/in_place
+template <typename T>
+struct in_place_type_t {};
+
+template <typename T>
+struct is_in_place_type_t {
+  static constexpr bool value = false;
+};
+
+template <typename... Ts>
+struct is_in_place_type_t<in_place_type_t<Ts...>> {
+  static constexpr bool value = true;
+};
+
+// C++14 implementation of C++17's std::bool_constant.
+//
+// Reference: https://en.cppreference.com/w/cpp/types/integral_constant
+// Specification: https://wg21.link/meta.type.synop
+template <bool B>
+using bool_constant = std::integral_constant<bool, B>;
+
+// C++14 implementation of C++17's std::conjunction.
+//
+// Reference: https://en.cppreference.com/w/cpp/types/conjunction
+// Specification: https://wg21.link/meta.logical#1.itemdecl:1
+template <typename...>
+struct conjunction : std::true_type {};
+
+template <typename B1>
+struct conjunction<B1> : B1 {};
+
+template <typename B1, typename... Bn>
+struct conjunction<B1, Bn...>
+    : std::conditional_t<static_cast<bool>(B1::value), conjunction<Bn...>, B1> {
+};
+
+// C++14 implementation of C++17's std::disjunction.
+//
+// Reference: https://en.cppreference.com/w/cpp/types/disjunction
+// Specification: https://wg21.link/meta.logical#itemdecl:2
+template <typename...>
+struct disjunction : std::false_type {};
+
+template <typename B1>
+struct disjunction<B1> : B1 {};
+
+template <typename B1, typename... Bn>
+struct disjunction<B1, Bn...>
+    : std::conditional_t<static_cast<bool>(B1::value), B1, disjunction<Bn...>> {
+};
+
+// C++14 implementation of C++17's std::negation.
+//
+// Reference: https://en.cppreference.com/w/cpp/types/negation
+// Specification: https://wg21.link/meta.logical#itemdecl:3
+template <typename B>
+struct negation : bool_constant<!static_cast<bool>(B::value)> {};
+
+// Implementation of C++17's invoke_result.
+//
+// This implementation adds references to `Functor` and `Args` to work around
+// some quirks of std::result_of. See the #Notes section of [1] for details.
+//
+// References:
+// [1] https://en.cppreference.com/w/cpp/types/result_of
+// [2] https://wg21.link/meta.trans.other#lib:invoke_result
+#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || __cplusplus >= 201703L)
+template <typename Functor, typename... Args>
+using invoke_result = std::invoke_result<Functor, Args...>;
+#else
+template <typename Functor, typename... Args>
+using invoke_result = std::result_of<Functor && (Args && ...)>;
+#endif
+
+// Implementation of C++17's std::invoke_result_t.
+//
+// Reference: https://wg21.link/meta.type.synop#lib:invoke_result_t
+template <typename Functor, typename... Args>
+using invoke_result_t = typename invoke_result<Functor, Args...>::type;
+
+namespace internal {
+
+// Base case, `InvokeResult` does not have a nested type member. This means `F`
+// could not be invoked with `Args...` and thus is not invocable.
+template <typename InvokeResult, typename R, typename = void>
+struct IsInvocableImpl : std::false_type {};
+
+// Happy case, `InvokeResult` does have a nested type member. Now check whether
+// `InvokeResult::type` is convertible to `R`. Short circuit in case
+// `std::is_void<R>`.
+template <typename InvokeResult, typename R>
+struct IsInvocableImpl<InvokeResult, R, void_t<typename InvokeResult::type>>
+    : disjunction<std::is_void<R>,
+                  std::is_convertible<typename InvokeResult::type, R>> {};
+
+}  // namespace internal
+
+// Implementation of C++17's std::is_invocable_r.
+//
+// Returns whether `F` can be invoked with `Args...` and the result is
+// convertible to `R`.
+//
+// Reference: https://wg21.link/meta.rel#lib:is_invocable_r
+template <typename R, typename F, typename... Args>
+struct is_invocable_r
+    : internal::IsInvocableImpl<invoke_result<F, Args...>, R> {};
+
+// Implementation of C++17's std::is_invocable.
+//
+// Returns whether `F` can be invoked with `Args...`.
+//
+// Reference: https://wg21.link/meta.rel#lib:is_invocable
+template <typename F, typename... Args>
+struct is_invocable : is_invocable_r<void, F, Args...> {};
+
+namespace internal {
+
+// The indirection with std::is_enum<T> is required, because instantiating
+// std::underlying_type_t<T> when T is not an enum is UB prior to C++20.
+template <typename T, bool = std::is_enum<T>::value>
+struct IsScopedEnumImpl : std::false_type {};
+
+template <typename T>
+struct IsScopedEnumImpl<T, /*std::is_enum<T>::value=*/true>
+    : negation<std::is_convertible<T, std::underlying_type_t<T>>> {};
+
+}  // namespace internal
+
+// Implementation of C++23's std::is_scoped_enum
+//
+// Reference: https://en.cppreference.com/w/cpp/types/is_scoped_enum
+template <typename T>
+struct is_scoped_enum : internal::IsScopedEnumImpl<T> {};
+
+// Implementation of C++20's std::remove_cvref.
+//
+// References:
+// - https://en.cppreference.com/w/cpp/types/remove_cvref
+// - https://wg21.link/meta.trans.other#lib:remove_cvref
+template <typename T>
+struct remove_cvref {
+  using type = std::remove_cv_t<std::remove_reference_t<T>>;
+};
+
+// Implementation of C++20's std::remove_cvref_t.
+//
+// References:
+// - https://en.cppreference.com/w/cpp/types/remove_cvref
+// - https://wg21.link/meta.type.synop#lib:remove_cvref_t
+template <typename T>
+using remove_cvref_t = typename remove_cvref<T>::type;
+
+// Simplified implementation of C++20's std::iter_value_t.
+// As opposed to std::iter_value_t, this implementation does not restrict
+// the type of `Iter` and does not consider specializations of
+// `indirectly_readable_traits`.
+//
+// Reference: https://wg21.link/readable.traits#2
+template <typename Iter>
+using iter_value_t =
+    typename std::iterator_traits<remove_cvref_t<Iter>>::value_type;
+
+// Simplified implementation of C++20's std::iter_reference_t.
+// As opposed to std::iter_reference_t, this implementation does not restrict
+// the type of `Iter`.
+//
+// Reference: https://wg21.link/iterator.synopsis#:~:text=iter_reference_t
+template <typename Iter>
+using iter_reference_t = decltype(*std::declval<Iter&>());
+
+// Simplified implementation of C++20's std::indirect_result_t. As opposed to
+// std::indirect_result_t, this implementation does not restrict the type of
+// `Func` and `Iters`.
+//
+// Reference: https://wg21.link/iterator.synopsis#:~:text=indirect_result_t
+template <typename Func, typename... Iters>
+using indirect_result_t = invoke_result_t<Func, iter_reference_t<Iters>...>;
+
+// Simplified implementation of C++20's std::projected. As opposed to
+// std::projected, this implementation does not explicitly restrict the type of
+// `Iter` and `Proj`, but rather does so implicitly by requiring
+// `indirect_result_t<Proj, Iter>` is a valid type. This is required for SFINAE
+// friendliness.
+//
+// Reference: https://wg21.link/projected
+template <typename Iter,
+          typename Proj,
+          typename IndirectResultT = indirect_result_t<Proj, Iter>>
+struct projected {
+  using value_type = remove_cvref_t<IndirectResultT>;
+
+  IndirectResultT operator*() const;  // not defined
+};
+
+}  // namespace base
+
+#undef CR_USE_FALLBACKS_FOR_GCC_WITH_LIBCXX
+#undef CR_USE_FALLBACKS_FOR_OLD_EXPERIMENTAL_GLIBCXX
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_TEMPLATE_UTIL_H_

Thirdparty/libcef/include/base/cef_thread_checker.h

@@ -0,0 +1,116 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_BASE_THREAD_CHECKER_H_
+#define CEF_INCLUDE_BASE_THREAD_CHECKER_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/threading/thread_checker.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include "include/base/cef_logging.h"
+#include "include/base/internal/cef_thread_checker_impl.h"
+
+// Apart from debug builds, we also enable the thread checker in
+// builds with DCHECK_ALWAYS_ON so that trybots and waterfall bots
+// with this define will get the same level of thread checking as
+// debug bots.
+#if DCHECK_IS_ON()
+#define ENABLE_THREAD_CHECKER 1
+#else
+#define ENABLE_THREAD_CHECKER 0
+#endif
+
+namespace base {
+
+namespace cef_internal {
+
+// Do nothing implementation, for use in release mode.
+//
+// Note: You should almost always use the ThreadChecker class to get the
+// right version for your build configuration.
+class ThreadCheckerDoNothing {
+ public:
+  bool CalledOnValidThread() const { return true; }
+
+  void DetachFromThread() {}
+};
+
+}  // namespace cef_internal
+
+// ThreadChecker is a helper class used to help verify that some methods of a
+// class are called from the same thread. It provides identical functionality to
+// base::NonThreadSafe, but it is meant to be held as a member variable, rather
+// than inherited from base::NonThreadSafe.
+//
+// While inheriting from base::NonThreadSafe may give a clear indication about
+// the thread-safety of a class, it may also lead to violations of the style
+// guide with regard to multiple inheritance. The choice between having a
+// ThreadChecker member and inheriting from base::NonThreadSafe should be based
+// on whether:
+//  - Derived classes need to know the thread they belong to, as opposed to
+//    having that functionality fully encapsulated in the base class.
+//  - Derived classes should be able to reassign the base class to another
+//    thread, via DetachFromThread.
+//
+// If neither of these are true, then having a ThreadChecker member and calling
+// CalledOnValidThread is the preferable solution.
+//
+// Example:
+// class MyClass {
+//  public:
+//   void Foo() {
+//     DCHECK(thread_checker_.CalledOnValidThread());
+//     ... (do stuff) ...
+//   }
+//
+//  private:
+//   ThreadChecker thread_checker_;
+// }
+//
+// In Release mode, CalledOnValidThread will always return true.
+#if ENABLE_THREAD_CHECKER
+class ThreadChecker : public cef_internal::ThreadCheckerImpl {};
+#else
+class ThreadChecker : public cef_internal::ThreadCheckerDoNothing {};
+#endif  // ENABLE_THREAD_CHECKER
+
+#undef ENABLE_THREAD_CHECKER
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_THREAD_CHECKER_H_

Thirdparty/libcef/include/base/cef_trace_event.h

@@ -0,0 +1,415 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+///
+// Trace events are for tracking application performance and resource usage.
+// Macros are provided to track:
+//    Begin and end of function calls
+//    Counters
+//
+// Events are issued against categories. Whereas LOG's categories are statically
+// defined, TRACE categories are created implicitly with a string. For example:
+//   TRACE_EVENT_INSTANT0("MY_SUBSYSTEM", "SomeImportantEvent")
+//
+// Events can be INSTANT, or can be pairs of BEGIN and END in the same scope:
+//   TRACE_EVENT_BEGIN0("MY_SUBSYSTEM", "SomethingCostly")
+//   doSomethingCostly()
+//   TRACE_EVENT_END0("MY_SUBSYSTEM", "SomethingCostly")
+// Note: Our tools can't always determine the correct BEGIN/END pairs unless
+// these are used in the same scope. Use ASYNC_BEGIN/ASYNC_END macros if you
+// need them to be in separate scopes.
+//
+// A common use case is to trace entire function scopes. This issues a trace
+// BEGIN and END automatically:
+//   void doSomethingCostly() {
+//     TRACE_EVENT0("MY_SUBSYSTEM", "doSomethingCostly");
+//     ...
+//   }
+//
+// Additional parameters can be associated with an event:
+//   void doSomethingCostly2(int howMuch) {
+//     TRACE_EVENT1("MY_SUBSYSTEM", "doSomethingCostly",
+//         "howMuch", howMuch);
+//     ...
+//   }
+//
+// The trace system will automatically add to this information the current
+// process id, thread id, and a timestamp in microseconds.
+//
+// To trace an asynchronous procedure such as an IPC send/receive, use
+// ASYNC_BEGIN and ASYNC_END:
+//   [single threaded sender code]
+//     static int send_count = 0;
+//     ++send_count;
+//     TRACE_EVENT_ASYNC_BEGIN0("ipc", "message", send_count);
+//     Send(new MyMessage(send_count));
+//   [receive code]
+//     void OnMyMessage(send_count) {
+//       TRACE_EVENT_ASYNC_END0("ipc", "message", send_count);
+//     }
+// The third parameter is a unique ID to match ASYNC_BEGIN/ASYNC_END pairs.
+// ASYNC_BEGIN and ASYNC_END can occur on any thread of any traced process.
+// Pointers can be used for the ID parameter, and they will be mangled
+// internally so that the same pointer on two different processes will not
+// match. For example:
+//   class MyTracedClass {
+//    public:
+//     MyTracedClass() {
+//       TRACE_EVENT_ASYNC_BEGIN0("category", "MyTracedClass", this);
+//     }
+//     ~MyTracedClass() {
+//       TRACE_EVENT_ASYNC_END0("category", "MyTracedClass", this);
+//     }
+//   }
+//
+// The trace event also supports counters, which is a way to track a quantity
+// as it varies over time. Counters are created with the following macro:
+//   TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter", g_myCounterValue);
+//
+// Counters are process-specific. The macro itself can be issued from any
+// thread, however.
+//
+// Sometimes, you want to track two counters at once. You can do this with two
+// counter macros:
+//   TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter0", g_myCounterValue[0]);
+//   TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter1", g_myCounterValue[1]);
+// Or you can do it with a combined macro:
+//   TRACE_COUNTER2("MY_SUBSYSTEM", "myCounter",
+//       "bytesPinned", g_myCounterValue[0],
+//       "bytesAllocated", g_myCounterValue[1]);
+// This indicates to the tracing UI that these counters should be displayed
+// in a single graph, as a summed area chart.
+//
+// Since counters are in a global namespace, you may want to disembiguate with a
+// unique ID, by using the TRACE_COUNTER_ID* variations.
+//
+// By default, trace collection is compiled in, but turned off at runtime.
+// Collecting trace data is the responsibility of the embedding application. In
+// CEF's case, calling BeginTracing will turn on tracing on all active
+// processes.
+//
+//
+// Memory scoping note:
+// Tracing copies the pointers, not the string content, of the strings passed
+// in for category, name, and arg_names.  Thus, the following code will cause
+// problems:
+//     char* str = strdup("impprtantName");
+//     TRACE_EVENT_INSTANT0("SUBSYSTEM", str);  // BAD!
+//     free(str);                   // Trace system now has dangling pointer
+//
+// To avoid this issue with the |name| and |arg_name| parameters, use the
+// TRACE_EVENT_COPY_XXX overloads of the macros at additional runtime
+// overhead.
+// Notes: The category must always be in a long-lived char* (i.e. static const).
+//        The |arg_values|, when used, are always deep copied with the _COPY
+//        macros.
+//
+//
+// Thread Safety:
+// All macros are thread safe and can be used from any process.
+///
+
+#ifndef CEF_INCLUDE_BASE_CEF_TRACE_EVENT_H_
+#define CEF_INCLUDE_BASE_CEF_TRACE_EVENT_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/trace_event/trace_event.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include "include/internal/cef_trace_event_internal.h"
+
+// Records a pair of begin and end events called "name" for the current
+// scope, with 0, 1 or 2 associated arguments. If the category is not
+// enabled, then this does nothing.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+#define TRACE_EVENT0(category, name)                              \
+  cef_trace_event_begin(category, name, NULL, 0, NULL, 0, false); \
+  CEF_INTERNAL_TRACE_END_ON_SCOPE_CLOSE(category, name)
+#define TRACE_EVENT1(category, name, arg1_name, arg1_val)                     \
+  cef_trace_event_begin(category, name, arg1_name, arg1_val, NULL, 0, false); \
+  CEF_INTERNAL_TRACE_END_ON_SCOPE_CLOSE(category, name)
+#define TRACE_EVENT2(category, name, arg1_name, arg1_val, arg2_name, arg2_val) \
+  cef_trace_event_begin(category, name, arg1_name, arg1_val, arg2_name,        \
+                        arg2_val, false);                                      \
+  CEF_INTERNAL_TRACE_END_ON_SCOPE_CLOSE(category, name)
+
+// Implementation detail: trace event macros create temporary variable names.
+// These macros give each temporary variable a unique name based on the line
+// number to prevent name collisions.
+#define CEF_INTERNAL_TRACE_EVENT_UID3(a, b) cef_trace_event_unique_##a##b
+#define CEF_INTERNAL_TRACE_EVENT_UID2(a, b) CEF_INTERNAL_TRACE_EVENT_UID3(a, b)
+#define CEF_INTERNAL_TRACE_EVENT_UID(name_prefix) \
+  CEF_INTERNAL_TRACE_EVENT_UID2(name_prefix, __LINE__)
+
+// Implementation detail: internal macro to end end event when the scope ends.
+#define CEF_INTERNAL_TRACE_END_ON_SCOPE_CLOSE(category, name)            \
+  cef_trace_event::CefTraceEndOnScopeClose CEF_INTERNAL_TRACE_EVENT_UID( \
+      profileScope)(category, name)
+
+// Records a single event called "name" immediately, with 0, 1 or 2
+// associated arguments. If the category is not enabled, then this
+// does nothing.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+#define TRACE_EVENT_INSTANT0(category, name) \
+  cef_trace_event_instant(category, name, NULL, 0, NULL, 0, false)
+#define TRACE_EVENT_INSTANT1(category, name, arg1_name, arg1_val) \
+  cef_trace_event_instant(category, name, arg1_name, arg1_val, NULL, 0, false)
+#define TRACE_EVENT_INSTANT2(category, name, arg1_name, arg1_val, arg2_name, \
+                             arg2_val)                                       \
+  cef_trace_event_instant(category, name, arg1_name, arg1_val, arg2_name,    \
+                          arg2_val, false)
+#define TRACE_EVENT_COPY_INSTANT0(category, name) \
+  cef_trace_event_instant(category, name, NULL, 0, NULL, 0, true)
+#define TRACE_EVENT_COPY_INSTANT1(category, name, arg1_name, arg1_val) \
+  cef_trace_event_instant(category, name, arg1_name, arg1_val, NULL, 0, true)
+#define TRACE_EVENT_COPY_INSTANT2(category, name, arg1_name, arg1_val,    \
+                                  arg2_name, arg2_val)                    \
+  cef_trace_event_instant(category, name, arg1_name, arg1_val, arg2_name, \
+                          arg2_val, true)
+
+// Records a single BEGIN event called "name" immediately, with 0, 1 or 2
+// associated arguments. If the category is not enabled, then this
+// does nothing.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+#define TRACE_EVENT_BEGIN0(category, name) \
+  cef_trace_event_begin(category, name, NULL, 0, NULL, 0, false)
+#define TRACE_EVENT_BEGIN1(category, name, arg1_name, arg1_val) \
+  cef_trace_event_begin(category, name, arg1_name, arg1_val, NULL, 0, false)
+#define TRACE_EVENT_BEGIN2(category, name, arg1_name, arg1_val, arg2_name, \
+                           arg2_val)                                       \
+  cef_trace_event_begin(category, name, arg1_name, arg1_val, arg2_name,    \
+                        arg2_val, false)
+#define TRACE_EVENT_COPY_BEGIN0(category, name) \
+  cef_trace_event_begin(category, name, NULL, 0, NULL, 0, true)
+#define TRACE_EVENT_COPY_BEGIN1(category, name, arg1_name, arg1_val) \
+  cef_trace_event_begin(category, name, arg1_name, arg1_val, NULL, 0, true)
+#define TRACE_EVENT_COPY_BEGIN2(category, name, arg1_name, arg1_val,    \
+                                arg2_name, arg2_val)                    \
+  cef_trace_event_begin(category, name, arg1_name, arg1_val, arg2_name, \
+                        arg2_val, true)
+
+// Records a single END event for "name" immediately. If the category
+// is not enabled, then this does nothing.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+#define TRACE_EVENT_END0(category, name) \
+  cef_trace_event_end(category, name, NULL, 0, NULL, 0, false)
+#define TRACE_EVENT_END1(category, name, arg1_name, arg1_val) \
+  cef_trace_event_end(category, name, arg1_name, arg1_val, NULL, 0, false)
+#define TRACE_EVENT_END2(category, name, arg1_name, arg1_val, arg2_name, \
+                         arg2_val)                                       \
+  cef_trace_event_end(category, name, arg1_name, arg1_val, arg2_name,    \
+                      arg2_val, false)
+#define TRACE_EVENT_COPY_END0(category, name) \
+  cef_trace_event_end(category, name, NULL, 0, NULL, 0, true)
+#define TRACE_EVENT_COPY_END1(category, name, arg1_name, arg1_val) \
+  cef_trace_event_end(category, name, arg1_name, arg1_val, NULL, 0, true)
+#define TRACE_EVENT_COPY_END2(category, name, arg1_name, arg1_val, arg2_name, \
+                              arg2_val)                                       \
+  cef_trace_event_end(category, name, arg1_name, arg1_val, arg2_name,         \
+                      arg2_val, true)
+
+// Records the value of a counter called "name" immediately. Value
+// must be representable as a 32 bit integer.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+#define TRACE_COUNTER1(category, name, value) \
+  cef_trace_counter(category, name, NULL, value, NULL, 0, false)
+#define TRACE_COPY_COUNTER1(category, name, value) \
+  cef_trace_counter(category, name, NULL, value, NULL, 0, true)
+
+// Records the values of a multi-parted counter called "name" immediately.
+// The UI will treat value1 and value2 as parts of a whole, displaying their
+// values as a stacked-bar chart.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+#define TRACE_COUNTER2(category, name, value1_name, value1_val, value2_name, \
+                       value2_val)                                           \
+  cef_trace_counter(category, name, value1_name, value1_val, value2_name,    \
+                    value2_val, false)
+#define TRACE_COPY_COUNTER2(category, name, value1_name, value1_val,      \
+                            value2_name, value2_val)                      \
+  cef_trace_counter(category, name, value1_name, value1_val, value2_name, \
+                    value2_val, true)
+
+// Records the value of a counter called "name" immediately. Value
+// must be representable as a 32 bit integer.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+// - |id| is used to disambiguate counters with the same name. It must either
+//   be a pointer or an integer value up to 64 bits. If it's a pointer, the
+//   bits will be xored with a hash of the process ID so that the same pointer
+//   on two different processes will not collide.
+#define TRACE_COUNTER_ID1(category, name, id, value) \
+  cef_trace_counter_id(category, name, id, NULL, value, NULL, 0, false)
+#define TRACE_COPY_COUNTER_ID1(category, name, id, value) \
+  cef_trace_counter_id(category, name, id, NULL, value, NULL, 0, true)
+
+// Records the values of a multi-parted counter called "name" immediately.
+// The UI will treat value1 and value2 as parts of a whole, displaying their
+// values as a stacked-bar chart.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+// - |id| is used to disambiguate counters with the same name. It must either
+//   be a pointer or an integer value up to 64 bits. If it's a pointer, the
+//   bits will be xored with a hash of the process ID so that the same pointer
+//   on two different processes will not collide.
+#define TRACE_COUNTER_ID2(category, name, id, value1_name, value1_val, \
+                          value2_name, value2_val)                     \
+  cef_trace_counter_id(category, name, id, value1_name, value1_val,    \
+                       value2_name, value2_val, false)
+#define TRACE_COPY_COUNTER_ID2(category, name, id, value1_name, value1_val, \
+                               value2_name, value2_val)                     \
+  cef_trace_counter_id(category, name, id, value1_name, value1_val,         \
+                       value2_name, value2_val, true)
+
+// Records a single ASYNC_BEGIN event called "name" immediately, with 0, 1 or 2
+// associated arguments. If the category is not enabled, then this
+// does nothing.
+// - category and name strings must have application lifetime (statics or
+//   literals). They may not include " chars.
+// - |id| is used to match the ASYNC_BEGIN event with the ASYNC_END event.
+//   ASYNC events are considered to match if their category, name and id values
+//   all match. |id| must either be a pointer or an integer value up to 64
+//   bits. If it's a pointer, the bits will be xored with a hash of the process
+//   ID sothat the same pointer on two different processes will not collide.
+// An asynchronous operation can consist of multiple phases. The first phase is
+// defined by the ASYNC_BEGIN calls. Additional phases can be defined using the
+// ASYNC_STEP_BEGIN macros. When the operation completes, call ASYNC_END.
+// An async operation can span threads and processes, but all events in that
+// operation must use the same |name| and |id|. Each event can have its own
+// args.
+#define TRACE_EVENT_ASYNC_BEGIN0(category, name, id) \
+  cef_trace_event_async_begin(category, name, id, NULL, 0, NULL, 0, false)
+#define TRACE_EVENT_ASYNC_BEGIN1(category, name, id, arg1_name, arg1_val)    \
+  cef_trace_event_async_begin(category, name, id, arg1_name, arg1_val, NULL, \
+                              0, false)
+#define TRACE_EVENT_ASYNC_BEGIN2(category, name, id, arg1_name, arg1_val, \
+                                 arg2_name, arg2_val)                     \
+  cef_trace_event_async_begin(category, name, id, arg1_name, arg1_val,    \
+                              arg2_name, arg2_val, false)
+#define TRACE_EVENT_COPY_ASYNC_BEGIN0(category, name, id) \
+  cef_trace_event_async_begin(category, name, id, NULL, 0, NULL, 0, true)
+#define TRACE_EVENT_COPY_ASYNC_BEGIN1(category, name, id, arg1_name, arg1_val) \
+  cef_trace_event_async_begin(category, name, id, arg1_name, arg1_val, NULL,   \
+                              0, true)
+#define TRACE_EVENT_COPY_ASYNC_BEGIN2(category, name, id, arg1_name, arg1_val, \
+                                      arg2_name, arg2_val)                     \
+  cef_trace_event_async_begin(category, name, id, arg1_name, arg1_val,         \
+                              arg2_name, arg2_val, true)
+
+// Records a single ASYNC_STEP_INTO event for |step| immediately. If the
+// category is not enabled, then this does nothing. The |name| and |id| must
+// match the ASYNC_BEGIN event above. The |step| param identifies this step
+// within the async event. This should be called at the beginning of the next
+// phase of an asynchronous operation. The ASYNC_BEGIN event must not have any
+// ASYNC_STEP_PAST events.
+#define TRACE_EVENT_ASYNC_STEP_INTO0(category, name, id, step) \
+  cef_trace_event_async_step_into(category, name, id, step, NULL, 0, false)
+#define TRACE_EVENT_ASYNC_STEP_INTO1(category, name, id, step, arg1_name, \
+                                     arg1_val)                            \
+  cef_trace_event_async_step_into(category, name, id, step, arg1_name,    \
+                                  arg1_val, false)
+#define TRACE_EVENT_COPY_ASYNC_STEP_INTO0(category, name, id, step) \
+  cef_trace_event_async_step_into(category, name, id, step, NULL, 0, true)
+#define TRACE_EVENT_COPY_ASYNC_STEP_INTO1(category, name, id, step, arg1_name, \
+                                          arg1_val)                            \
+  cef_trace_event_async_step_into(category, name, id, step, arg1_name,         \
+                                  arg1_val, true)
+
+// Records a single ASYNC_STEP_PAST event for |step| immediately. If the
+// category is not enabled, then this does nothing. The |name| and |id| must
+// match the ASYNC_BEGIN event above. The |step| param identifies this step
+// within the async event. This should be called at the beginning of the next
+// phase of an asynchronous operation. The ASYNC_BEGIN event must not have any
+// ASYNC_STEP_INTO events.
+#define TRACE_EVENT_ASYNC_STEP_PAST0(category, name, id, step) \
+  cef_trace_event_async_step_past(category, name, id, step, NULL, 0, false)
+#define TRACE_EVENT_ASYNC_STEP_PAST1(category, name, id, step, arg1_name, \
+                                     arg1_val)                            \
+  cef_trace_event_async_step_past(category, name, id, step, arg1_name,    \
+                                  arg1_val, false)
+#define TRACE_EVENT_COPY_ASYNC_STEP_PAST0(category, name, id, step) \
+  cef_trace_event_async_step_past(category, name, id, step, NULL, 0, true)
+#define TRACE_EVENT_COPY_ASYNC_STEP_PAST1(category, name, id, step, arg1_name, \
+                                          arg1_val)                            \
+  cef_trace_event_async_step_past(category, name, id, step, arg1_name,         \
+                                  arg1_val, true)
+
+// Records a single ASYNC_END event for "name" immediately. If the category
+// is not enabled, then this does nothing.
+#define TRACE_EVENT_ASYNC_END0(category, name, id) \
+  cef_trace_event_async_end(category, name, id, NULL, 0, NULL, 0, false)
+#define TRACE_EVENT_ASYNC_END1(category, name, id, arg1_name, arg1_val)       \
+  cef_trace_event_async_end(category, name, id, arg1_name, arg1_val, NULL, 0, \
+                            false)
+#define TRACE_EVENT_ASYNC_END2(category, name, id, arg1_name, arg1_val, \
+                               arg2_name, arg2_val)                     \
+  cef_trace_event_async_end(category, name, id, arg1_name, arg1_val,    \
+                            arg2_name, arg2_val, false)
+#define TRACE_EVENT_COPY_ASYNC_END0(category, name, id) \
+  cef_trace_event_async_end(category, name, id, NULL, 0, NULL, 0, true)
+#define TRACE_EVENT_COPY_ASYNC_END1(category, name, id, arg1_name, arg1_val)  \
+  cef_trace_event_async_end(category, name, id, arg1_name, arg1_val, NULL, 0, \
+                            true)
+#define TRACE_EVENT_COPY_ASYNC_END2(category, name, id, arg1_name, arg1_val, \
+                                    arg2_name, arg2_val)                     \
+  cef_trace_event_async_end(category, name, id, arg1_name, arg1_val,         \
+                            arg2_name, arg2_val, true)
+
+namespace cef_trace_event {
+
+// Used by TRACE_EVENTx macro. Do not use directly.
+class CefTraceEndOnScopeClose {
+ public:
+  CefTraceEndOnScopeClose(const char* category, const char* name)
+      : category_(category), name_(name) {}
+  ~CefTraceEndOnScopeClose() {
+    cef_trace_event_end(category_, name_, NULL, 0, NULL, 0, false);
+  }
+
+ private:
+  const char* category_;
+  const char* name_;
+};
+
+}  // cef_trace_event
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_TRACE_EVENT_H_

Thirdparty/libcef/include/base/cef_tuple.h

@@ -0,0 +1,149 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2011
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Use std::tuple as tuple type. This file contains helper functions for
+// working with std::tuples.
+// The functions DispatchToMethod and DispatchToFunction take a function pointer
+// or instance and method pointer, and unpack a tuple into arguments to the
+// call.
+//
+// Example usage:
+//   // These two methods of creating a Tuple are identical.
+//   std::tuple<int, const char*> tuple_a(1, "wee");
+//   std::tuple<int, const char*> tuple_b = std::make_tuple(1, "wee");
+//
+//   void SomeFunc(int a, const char* b) { }
+//   DispatchToFunction(&SomeFunc, tuple_a);  // SomeFunc(1, "wee")
+//   DispatchToFunction(
+//       &SomeFunc, std::make_tuple(10, "foo"));    // SomeFunc(10, "foo")
+//
+//   struct { void SomeMeth(int a, int b, int c) { } } foo;
+//   DispatchToMethod(&foo, &Foo::SomeMeth, std::make_tuple(1, 2, 3));
+//   // foo->SomeMeth(1, 2, 3);
+
+#ifndef CEF_INCLUDE_BASE_CEF_TUPLE_H_
+#define CEF_INCLUDE_BASE_CEF_TUPLE_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/tuple.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <stddef.h>
+#include <tuple>
+#include <utility>
+
+#include "include/base/cef_build.h"
+
+namespace base {
+
+// Dispatchers ----------------------------------------------------------------
+//
+// Helper functions that call the given method on an object, with the unpacked
+// tuple arguments.  Notice that they all have the same number of arguments,
+// so you need only write:
+//   DispatchToMethod(object, &Object::method, args);
+// This is very useful for templated dispatchers, since they don't need to know
+// what type |args| is.
+
+// Non-Static Dispatchers with no out params.
+
+template <typename ObjT, typename Method, typename Tuple, size_t... Ns>
+inline void DispatchToMethodImpl(const ObjT& obj,
+                                 Method method,
+                                 Tuple&& args,
+                                 std::index_sequence<Ns...>) {
+  (obj->*method)(std::get<Ns>(std::forward<Tuple>(args))...);
+}
+
+template <typename ObjT, typename Method, typename Tuple>
+inline void DispatchToMethod(const ObjT& obj,
+                             Method method,
+                             Tuple&& args) {
+  constexpr size_t size = std::tuple_size<std::decay_t<Tuple>>::value;
+  DispatchToMethodImpl(obj, method, std::forward<Tuple>(args),
+                       std::make_index_sequence<size>());
+}
+
+// Static Dispatchers with no out params.
+
+template <typename Function, typename Tuple, size_t... Ns>
+inline void DispatchToFunctionImpl(Function function,
+                                   Tuple&& args,
+                                   std::index_sequence<Ns...>) {
+  (*function)(std::get<Ns>(std::forward<Tuple>(args))...);
+}
+
+template <typename Function, typename Tuple>
+inline void DispatchToFunction(Function function, Tuple&& args) {
+  constexpr size_t size = std::tuple_size<std::decay_t<Tuple>>::value;
+  DispatchToFunctionImpl(function, std::forward<Tuple>(args),
+                         std::make_index_sequence<size>());
+}
+
+// Dispatchers with out parameters.
+
+template <typename ObjT,
+          typename Method,
+          typename InTuple,
+          typename OutTuple,
+          size_t... InNs,
+          size_t... OutNs>
+inline void DispatchToMethodImpl(const ObjT& obj,
+                                 Method method,
+                                 InTuple&& in,
+                                 OutTuple* out,
+                                 std::index_sequence<InNs...>,
+                                 std::index_sequence<OutNs...>) {
+  (obj->*method)(std::get<InNs>(std::forward<InTuple>(in))...,
+                 &std::get<OutNs>(*out)...);
+}
+
+template <typename ObjT, typename Method, typename InTuple, typename OutTuple>
+inline void DispatchToMethod(const ObjT& obj,
+                             Method method,
+                             InTuple&& in,
+                             OutTuple* out) {
+  constexpr size_t in_size = std::tuple_size<std::decay_t<InTuple>>::value;
+  constexpr size_t out_size = std::tuple_size<OutTuple>::value;
+  DispatchToMethodImpl(obj, method, std::forward<InTuple>(in), out,
+                       std::make_index_sequence<in_size>(),
+                       std::make_index_sequence<out_size>());
+}
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_TUPLE_H_

Thirdparty/libcef/include/base/cef_weak_ptr.h

@@ -0,0 +1,438 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Weak pointers are pointers to an object that do not affect its lifetime,
+// and which may be invalidated (i.e. reset to nullptr) by the object, or its
+// owner, at any time, most commonly when the object is about to be deleted.
+
+// Weak pointers are useful when an object needs to be accessed safely by one
+// or more objects other than its owner, and those callers can cope with the
+// object vanishing and e.g. tasks posted to it being silently dropped.
+// Reference-counting such an object would complicate the ownership graph and
+// make it harder to reason about the object's lifetime.
+
+// EXAMPLE:
+//
+//  class Controller {
+//   public:
+//    void SpawnWorker() { Worker::StartNew(weak_factory_.GetWeakPtr()); }
+//    void WorkComplete(const Result& result) { ... }
+//   private:
+//    // Member variables should appear before the WeakPtrFactory, to ensure
+//    // that any WeakPtrs to Controller are invalidated before its members
+//    // variable's destructors are executed, rendering them invalid.
+//    WeakPtrFactory<Controller> weak_factory_{this};
+//  };
+//
+//  class Worker {
+//   public:
+//    static void StartNew(WeakPtr<Controller> controller) {
+//      Worker* worker = new Worker(std::move(controller));
+//      // Kick off asynchronous processing...
+//    }
+//   private:
+//    Worker(WeakPtr<Controller> controller)
+//        : controller_(std::move(controller)) {}
+//    void DidCompleteAsynchronousProcessing(const Result& result) {
+//      if (controller_)
+//        controller_->WorkComplete(result);
+//    }
+//    WeakPtr<Controller> controller_;
+//  };
+//
+// With this implementation a caller may use SpawnWorker() to dispatch multiple
+// Workers and subsequently delete the Controller, without waiting for all
+// Workers to have completed.
+
+// ------------------------- IMPORTANT: Thread-safety -------------------------
+
+// Weak pointers may be passed safely between threads, but must always be
+// dereferenced and invalidated on the same ThreaddTaskRunner otherwise
+// checking the pointer would be racey.
+//
+// To ensure correct use, the first time a WeakPtr issued by a WeakPtrFactory
+// is dereferenced, the factory and its WeakPtrs become bound to the calling
+// thread or current ThreaddWorkerPool token, and cannot be dereferenced or
+// invalidated on any other task runner. Bound WeakPtrs can still be handed
+// off to other task runners, e.g. to use to post tasks back to object on the
+// bound thread.
+//
+// If all WeakPtr objects are destroyed or invalidated then the factory is
+// unbound from the ThreaddTaskRunner/Thread. The WeakPtrFactory may then be
+// destroyed, or new WeakPtr objects may be used, from a different thread.
+//
+// Thus, at least one WeakPtr object must exist and have been dereferenced on
+// the correct thread to enforce that other WeakPtr objects will enforce they
+// are used on the desired thread.
+
+#ifndef CEF_INCLUDE_BASE_CEF_WEAK_PTR_H_
+#define CEF_INCLUDE_BASE_CEF_WEAK_PTR_H_
+#pragma once
+
+#if defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/memory/weak_ptr.h"
+#else  // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <cstddef>
+#include <type_traits>
+
+#include "include/base/cef_atomic_flag.h"
+#include "include/base/cef_logging.h"
+#include "include/base/cef_ref_counted.h"
+#include "include/base/cef_thread_checker.h"
+
+namespace base {
+
+template <typename T>
+class SupportsWeakPtr;
+template <typename T>
+class WeakPtr;
+
+namespace internal {
+// These classes are part of the WeakPtr implementation.
+// DO NOT USE THESE CLASSES DIRECTLY YOURSELF.
+
+class WeakReference {
+ public:
+  // Although Flag is bound to a specific ThreaddTaskRunner, it may be
+  // deleted from another via base::WeakPtr::~WeakPtr().
+  class Flag : public RefCountedThreadSafe<Flag> {
+   public:
+    Flag();
+
+    void Invalidate();
+    bool IsValid() const;
+
+    bool MaybeValid() const;
+
+    void DetachFromThread();
+
+   private:
+    friend class base::RefCountedThreadSafe<Flag>;
+
+    ~Flag();
+
+    base::ThreadChecker thread_checker_;
+    AtomicFlag invalidated_;
+  };
+
+  WeakReference();
+  explicit WeakReference(const scoped_refptr<Flag>& flag);
+  ~WeakReference();
+
+  WeakReference(WeakReference&& other) noexcept;
+  WeakReference(const WeakReference& other);
+  WeakReference& operator=(WeakReference&& other) noexcept = default;
+  WeakReference& operator=(const WeakReference& other) = default;
+
+  bool IsValid() const;
+  bool MaybeValid() const;
+
+ private:
+  scoped_refptr<const Flag> flag_;
+};
+
+class WeakReferenceOwner {
+ public:
+  WeakReferenceOwner();
+  ~WeakReferenceOwner();
+
+  WeakReference GetRef() const;
+
+  bool HasRefs() const { return !flag_->HasOneRef(); }
+
+  void Invalidate();
+
+ private:
+  scoped_refptr<WeakReference::Flag> flag_;
+};
+
+// This class simplifies the implementation of WeakPtr's type conversion
+// constructor by avoiding the need for a public accessor for ref_.  A
+// WeakPtr<T> cannot access the private members of WeakPtr<U>, so this
+// base class gives us a way to access ref_ in a protected fashion.
+class WeakPtrBase {
+ public:
+  WeakPtrBase();
+  ~WeakPtrBase();
+
+  WeakPtrBase(const WeakPtrBase& other) = default;
+  WeakPtrBase(WeakPtrBase&& other) noexcept = default;
+  WeakPtrBase& operator=(const WeakPtrBase& other) = default;
+  WeakPtrBase& operator=(WeakPtrBase&& other) noexcept = default;
+
+  void reset() {
+    ref_ = internal::WeakReference();
+    ptr_ = 0;
+  }
+
+ protected:
+  WeakPtrBase(const WeakReference& ref, uintptr_t ptr);
+
+  WeakReference ref_;
+
+  // This pointer is only valid when ref_.is_valid() is true.  Otherwise, its
+  // value is undefined (as opposed to nullptr).
+  uintptr_t ptr_;
+};
+
+// This class provides a common implementation of common functions that would
+// otherwise get instantiated separately for each distinct instantiation of
+// SupportsWeakPtr<>.
+class SupportsWeakPtrBase {
+ public:
+  // A safe static downcast of a WeakPtr<Base> to WeakPtr<Derived>. This
+  // conversion will only compile if there is exists a Base which inherits
+  // from SupportsWeakPtr<Base>. See base::AsWeakPtr() below for a helper
+  // function that makes calling this easier.
+  //
+  // Precondition: t != nullptr
+  template <typename Derived>
+  static WeakPtr<Derived> StaticAsWeakPtr(Derived* t) {
+    static_assert(
+        std::is_base_of<internal::SupportsWeakPtrBase, Derived>::value,
+        "AsWeakPtr argument must inherit from SupportsWeakPtr");
+    return AsWeakPtrImpl<Derived>(t);
+  }
+
+ private:
+  // This template function uses type inference to find a Base of Derived
+  // which is an instance of SupportsWeakPtr<Base>. We can then safely
+  // static_cast the Base* to a Derived*.
+  template <typename Derived, typename Base>
+  static WeakPtr<Derived> AsWeakPtrImpl(SupportsWeakPtr<Base>* t) {
+    WeakPtr<Base> ptr = t->AsWeakPtr();
+    return WeakPtr<Derived>(
+        ptr.ref_, static_cast<Derived*>(reinterpret_cast<Base*>(ptr.ptr_)));
+  }
+};
+
+}  // namespace internal
+
+template <typename T>
+class WeakPtrFactory;
+
+// The WeakPtr class holds a weak reference to |T*|.
+//
+// This class is designed to be used like a normal pointer.  You should always
+// null-test an object of this class before using it or invoking a method that
+// may result in the underlying object being destroyed.
+//
+// EXAMPLE:
+//
+//   class Foo { ... };
+//   WeakPtr<Foo> foo;
+//   if (foo)
+//     foo->method();
+//
+template <typename T>
+class WeakPtr : public internal::WeakPtrBase {
+ public:
+  WeakPtr() = default;
+  WeakPtr(std::nullptr_t) {}
+
+  // Allow conversion from U to T provided U "is a" T. Note that this
+  // is separate from the (implicit) copy and move constructors.
+  template <typename U>
+  WeakPtr(const WeakPtr<U>& other) : WeakPtrBase(other) {
+    // Need to cast from U* to T* to do pointer adjustment in case of multiple
+    // inheritance. This also enforces the "U is a T" rule.
+    T* t = reinterpret_cast<U*>(other.ptr_);
+    ptr_ = reinterpret_cast<uintptr_t>(t);
+  }
+  template <typename U>
+  WeakPtr(WeakPtr<U>&& other) noexcept : WeakPtrBase(std::move(other)) {
+    // Need to cast from U* to T* to do pointer adjustment in case of multiple
+    // inheritance. This also enforces the "U is a T" rule.
+    T* t = reinterpret_cast<U*>(other.ptr_);
+    ptr_ = reinterpret_cast<uintptr_t>(t);
+  }
+
+  T* get() const {
+    return ref_.IsValid() ? reinterpret_cast<T*>(ptr_) : nullptr;
+  }
+
+  T& operator*() const {
+    CHECK(ref_.IsValid());
+    return *get();
+  }
+  T* operator->() const {
+    CHECK(ref_.IsValid());
+    return get();
+  }
+
+  // Allow conditionals to test validity, e.g. if (weak_ptr) {...};
+  explicit operator bool() const { return get() != nullptr; }
+
+  // Returns false if the WeakPtr is confirmed to be invalid. This call is safe
+  // to make from any thread, e.g. to optimize away unnecessary work, but
+  // operator bool() must always be called, on the correct thread, before
+  // actually using the pointer.
+  //
+  // Warning: as with any object, this call is only thread-safe if the WeakPtr
+  // instance isn't being re-assigned or reset() racily with this call.
+  bool MaybeValid() const { return ref_.MaybeValid(); }
+
+  // Returns whether the object |this| points to has been invalidated. This can
+  // be used to distinguish a WeakPtr to a destroyed object from one that has
+  // been explicitly set to null.
+  bool WasInvalidated() const { return ptr_ && !ref_.IsValid(); }
+
+ private:
+  friend class internal::SupportsWeakPtrBase;
+  template <typename U>
+  friend class WeakPtr;
+  friend class SupportsWeakPtr<T>;
+  friend class WeakPtrFactory<T>;
+
+  WeakPtr(const internal::WeakReference& ref, T* ptr)
+      : WeakPtrBase(ref, reinterpret_cast<uintptr_t>(ptr)) {}
+};
+
+// Allow callers to compare WeakPtrs against nullptr to test validity.
+template <class T>
+bool operator!=(const WeakPtr<T>& weak_ptr, std::nullptr_t) {
+  return !(weak_ptr == nullptr);
+}
+template <class T>
+bool operator!=(std::nullptr_t, const WeakPtr<T>& weak_ptr) {
+  return weak_ptr != nullptr;
+}
+template <class T>
+bool operator==(const WeakPtr<T>& weak_ptr, std::nullptr_t) {
+  return weak_ptr.get() == nullptr;
+}
+template <class T>
+bool operator==(std::nullptr_t, const WeakPtr<T>& weak_ptr) {
+  return weak_ptr == nullptr;
+}
+
+namespace internal {
+class WeakPtrFactoryBase {
+ protected:
+  WeakPtrFactoryBase(uintptr_t ptr);
+  ~WeakPtrFactoryBase();
+  internal::WeakReferenceOwner weak_reference_owner_;
+  uintptr_t ptr_;
+};
+}  // namespace internal
+
+// A class may be composed of a WeakPtrFactory and thereby
+// control how it exposes weak pointers to itself.  This is helpful if you only
+// need weak pointers within the implementation of a class.  This class is also
+// useful when working with primitive types.  For example, you could have a
+// WeakPtrFactory<bool> that is used to pass around a weak reference to a bool.
+template <class T>
+class WeakPtrFactory : public internal::WeakPtrFactoryBase {
+ public:
+  WeakPtrFactory() = delete;
+
+  explicit WeakPtrFactory(T* ptr)
+      : WeakPtrFactoryBase(reinterpret_cast<uintptr_t>(ptr)) {}
+
+  WeakPtrFactory(const WeakPtrFactory&) = delete;
+  WeakPtrFactory& operator=(const WeakPtrFactory&) = delete;
+
+  ~WeakPtrFactory() = default;
+
+  WeakPtr<T> GetWeakPtr() const {
+    return WeakPtr<T>(weak_reference_owner_.GetRef(),
+                      reinterpret_cast<T*>(ptr_));
+  }
+
+  // Call this method to invalidate all existing weak pointers.
+  void InvalidateWeakPtrs() {
+    DCHECK(ptr_);
+    weak_reference_owner_.Invalidate();
+  }
+
+  // Call this method to determine if any weak pointers exist.
+  bool HasWeakPtrs() const {
+    DCHECK(ptr_);
+    return weak_reference_owner_.HasRefs();
+  }
+};
+
+// A class may extend from SupportsWeakPtr to let others take weak pointers to
+// it. This avoids the class itself implementing boilerplate to dispense weak
+// pointers.  However, since SupportsWeakPtr's destructor won't invalidate
+// weak pointers to the class until after the derived class' members have been
+// destroyed, its use can lead to subtle use-after-destroy issues.
+template <class T>
+class SupportsWeakPtr : public internal::SupportsWeakPtrBase {
+ public:
+  SupportsWeakPtr() = default;
+
+  SupportsWeakPtr(const SupportsWeakPtr&) = delete;
+  SupportsWeakPtr& operator=(const SupportsWeakPtr&) = delete;
+
+  WeakPtr<T> AsWeakPtr() {
+    return WeakPtr<T>(weak_reference_owner_.GetRef(), static_cast<T*>(this));
+  }
+
+ protected:
+  ~SupportsWeakPtr() = default;
+
+ private:
+  internal::WeakReferenceOwner weak_reference_owner_;
+};
+
+// Helper function that uses type deduction to safely return a WeakPtr<Derived>
+// when Derived doesn't directly extend SupportsWeakPtr<Derived>, instead it
+// extends a Base that extends SupportsWeakPtr<Base>.
+//
+// EXAMPLE:
+//   class Base : public base::SupportsWeakPtr<Producer> {};
+//   class Derived : public Base {};
+//
+//   Derived derived;
+//   base::WeakPtr<Derived> ptr = base::AsWeakPtr(&derived);
+//
+// Note that the following doesn't work (invalid type conversion) since
+// Derived::AsWeakPtr() is WeakPtr<Base> SupportsWeakPtr<Base>::AsWeakPtr(),
+// and there's no way to safely cast WeakPtr<Base> to WeakPtr<Derived> at
+// the caller.
+//
+//   base::WeakPtr<Derived> ptr = derived.AsWeakPtr();  // Fails.
+
+template <typename Derived>
+WeakPtr<Derived> AsWeakPtr(Derived* t) {
+  return internal::SupportsWeakPtrBase::StaticAsWeakPtr<Derived>(t);
+}
+
+}  // namespace base
+
+#endif  // !USING_CHROMIUM_INCLUDES
+
+#endif  // CEF_INCLUDE_BASE_CEF_WEAK_PTR_H_

Thirdparty/libcef/include/base/internal/README-TRANSFER.txt

@@ -0,0 +1,6 @@
+Files in this directory have been copied from other locations in the Chromium
+source tree. They have been modified only to the extent necessary to work in
+the CEF Binary Distribution directory structure. Below is a listing of the
+original file locations.
+
+../net/base/net_error_list.h

Thirdparty/libcef/include/base/internal/cef_callback_internal.h

@@ -0,0 +1,275 @@
+// Copyright (c) 2012 Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Do not include this header file directly. Use base/cef_bind.h or
+// base/cef_callback.h instead.
+
+// This file contains utility functions and classes that help the
+// implementation, and management of the Callback objects.
+
+#ifndef CEF_INCLUDE_BASE_INTERNAL_CEF_CALLBACK_INTERNAL_H_
+#define CEF_INCLUDE_BASE_INTERNAL_CEF_CALLBACK_INTERNAL_H_
+
+#include "include/base/cef_callback_forward.h"
+#include "include/base/cef_ref_counted.h"
+
+namespace base {
+
+struct FakeBindState;
+
+namespace internal {
+
+class BindStateBase;
+class FinallyExecutorCommon;
+class ThenAndCatchExecutorCommon;
+
+template <typename ReturnType>
+class PostTaskExecutor;
+
+template <typename Functor, typename... BoundArgs>
+struct BindState;
+
+class CallbackBase;
+class CallbackBaseCopyable;
+
+struct BindStateBaseRefCountTraits {
+  static void Destruct(const BindStateBase*);
+};
+
+template <typename T>
+using PassingType = std::conditional_t<std::is_scalar<T>::value, T, T&&>;
+
+// BindStateBase is used to provide an opaque handle that the Callback
+// class can use to represent a function object with bound arguments.  It
+// behaves as an existential type that is used by a corresponding
+// DoInvoke function to perform the function execution.  This allows
+// us to shield the Callback class from the types of the bound argument via
+// "type erasure."
+// At the base level, the only task is to add reference counting data. Avoid
+// using or inheriting any virtual functions. Creating a vtable for every
+// BindState template instantiation results in a lot of bloat. Its only task is
+// to call the destructor which can be done with a function pointer.
+class BindStateBase
+    : public RefCountedThreadSafe<BindStateBase, BindStateBaseRefCountTraits> {
+ public:
+  REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE();
+
+  enum CancellationQueryMode {
+    IS_CANCELLED,
+    MAYBE_VALID,
+  };
+
+  using InvokeFuncStorage = void (*)();
+
+  BindStateBase(const BindStateBase&) = delete;
+  BindStateBase& operator=(const BindStateBase&) = delete;
+
+ private:
+  BindStateBase(InvokeFuncStorage polymorphic_invoke,
+                void (*destructor)(const BindStateBase*));
+  BindStateBase(InvokeFuncStorage polymorphic_invoke,
+                void (*destructor)(const BindStateBase*),
+                bool (*query_cancellation_traits)(const BindStateBase*,
+                                                  CancellationQueryMode mode));
+
+  ~BindStateBase() = default;
+
+  friend struct BindStateBaseRefCountTraits;
+  friend class RefCountedThreadSafe<BindStateBase, BindStateBaseRefCountTraits>;
+
+  friend class CallbackBase;
+  friend class CallbackBaseCopyable;
+
+  // Allowlist subclasses that access the destructor of BindStateBase.
+  template <typename Functor, typename... BoundArgs>
+  friend struct BindState;
+  friend struct ::base::FakeBindState;
+
+  bool IsCancelled() const {
+    return query_cancellation_traits_(this, IS_CANCELLED);
+  }
+
+  bool MaybeValid() const {
+    return query_cancellation_traits_(this, MAYBE_VALID);
+  }
+
+  // In C++, it is safe to cast function pointers to function pointers of
+  // another type. It is not okay to use void*. We create a InvokeFuncStorage
+  // that that can store our function pointer, and then cast it back to
+  // the original type on usage.
+  InvokeFuncStorage polymorphic_invoke_;
+
+  // Pointer to a function that will properly destroy |this|.
+  void (*destructor_)(const BindStateBase*);
+  bool (*query_cancellation_traits_)(const BindStateBase*,
+                                     CancellationQueryMode mode);
+};
+
+// Holds the Callback methods that don't require specialization to reduce
+// template bloat.
+// CallbackBase<MoveOnly> is a direct base class of MoveOnly callbacks, and
+// CallbackBase<Copyable> uses CallbackBase<MoveOnly> for its implementation.
+class CallbackBase {
+ public:
+  inline CallbackBase(CallbackBase&& c) noexcept;
+  CallbackBase& operator=(CallbackBase&& c) noexcept;
+
+  explicit CallbackBase(const CallbackBaseCopyable& c);
+  CallbackBase& operator=(const CallbackBaseCopyable& c);
+
+  explicit CallbackBase(CallbackBaseCopyable&& c) noexcept;
+  CallbackBase& operator=(CallbackBaseCopyable&& c) noexcept;
+
+  // Returns true if Callback is null (doesn't refer to anything).
+  bool is_null() const { return !bind_state_; }
+  explicit operator bool() const { return !is_null(); }
+
+  // Returns true if the callback invocation will be nop due to an cancellation.
+  // It's invalid to call this on uninitialized callback.
+  //
+  // Must be called on the Callback's destination sequence.
+  bool IsCancelled() const;
+
+  // If this returns false, the callback invocation will be a nop due to a
+  // cancellation. This may(!) still return true, even on a cancelled callback.
+  //
+  // This function is thread-safe.
+  bool MaybeValid() const;
+
+  // Returns the Callback into an uninitialized state.
+  void Reset();
+
+ protected:
+  friend class FinallyExecutorCommon;
+  friend class ThenAndCatchExecutorCommon;
+
+  template <typename ReturnType>
+  friend class PostTaskExecutor;
+
+  using InvokeFuncStorage = BindStateBase::InvokeFuncStorage;
+
+  // Returns true if this callback equals |other|. |other| may be null.
+  bool EqualsInternal(const CallbackBase& other) const;
+
+  constexpr inline CallbackBase();
+
+  // Allow initializing of |bind_state_| via the constructor to avoid default
+  // initialization of the scoped_refptr.
+  explicit inline CallbackBase(BindStateBase* bind_state);
+
+  InvokeFuncStorage polymorphic_invoke() const {
+    return bind_state_->polymorphic_invoke_;
+  }
+
+  // Force the destructor to be instantiated inside this translation unit so
+  // that our subclasses will not get inlined versions.  Avoids more template
+  // bloat.
+  ~CallbackBase();
+
+  scoped_refptr<BindStateBase> bind_state_;
+};
+
+constexpr CallbackBase::CallbackBase() = default;
+CallbackBase::CallbackBase(CallbackBase&&) noexcept = default;
+CallbackBase::CallbackBase(BindStateBase* bind_state)
+    : bind_state_(AdoptRef(bind_state)) {}
+
+// CallbackBase<Copyable> is a direct base class of Copyable Callbacks.
+class CallbackBaseCopyable : public CallbackBase {
+ public:
+  CallbackBaseCopyable(const CallbackBaseCopyable& c);
+  CallbackBaseCopyable(CallbackBaseCopyable&& c) noexcept = default;
+  CallbackBaseCopyable& operator=(const CallbackBaseCopyable& c);
+  CallbackBaseCopyable& operator=(CallbackBaseCopyable&& c) noexcept;
+
+ protected:
+  constexpr CallbackBaseCopyable() = default;
+  explicit CallbackBaseCopyable(BindStateBase* bind_state)
+      : CallbackBase(bind_state) {}
+  ~CallbackBaseCopyable() = default;
+};
+
+// Helpers for the `Then()` implementation.
+template <typename OriginalCallback, typename ThenCallback>
+struct ThenHelper;
+
+// Specialization when original callback returns `void`.
+template <template <typename> class OriginalCallback,
+          template <typename>
+          class ThenCallback,
+          typename... OriginalArgs,
+          typename ThenR,
+          typename... ThenArgs>
+struct ThenHelper<OriginalCallback<void(OriginalArgs...)>,
+                  ThenCallback<ThenR(ThenArgs...)>> {
+  static_assert(sizeof...(ThenArgs) == 0,
+                "|then| callback cannot accept parameters if |this| has a "
+                "void return type.");
+
+  static auto CreateTrampoline() {
+    return [](OriginalCallback<void(OriginalArgs...)> c1,
+              ThenCallback<ThenR(ThenArgs...)> c2, OriginalArgs... c1_args) {
+      std::move(c1).Run(std::forward<OriginalArgs>(c1_args)...);
+      return std::move(c2).Run();
+    };
+  }
+};
+
+// Specialization when original callback returns a non-void type.
+template <template <typename> class OriginalCallback,
+          template <typename>
+          class ThenCallback,
+          typename OriginalR,
+          typename... OriginalArgs,
+          typename ThenR,
+          typename... ThenArgs>
+struct ThenHelper<OriginalCallback<OriginalR(OriginalArgs...)>,
+                  ThenCallback<ThenR(ThenArgs...)>> {
+  static_assert(sizeof...(ThenArgs) == 1,
+                "|then| callback must accept exactly one parameter if |this| "
+                "has a non-void return type.");
+  // TODO(dcheng): This should probably check is_convertible as well (same with
+  // `AssertBindArgsValidity`).
+  static_assert(std::is_constructible<ThenArgs..., OriginalR&&>::value,
+                "|then| callback's parameter must be constructible from "
+                "return type of |this|.");
+
+  static auto CreateTrampoline() {
+    return [](OriginalCallback<OriginalR(OriginalArgs...)> c1,
+              ThenCallback<ThenR(ThenArgs...)> c2, OriginalArgs... c1_args) {
+      return std::move(c2).Run(
+          std::move(c1).Run(std::forward<OriginalArgs>(c1_args)...));
+    };
+  }
+};
+
+}  // namespace internal
+}  // namespace base
+
+#endif  // CEF_INCLUDE_BASE_INTERNAL_CEF_CALLBACK_INTERNAL_H_

Thirdparty/libcef/include/base/internal/cef_lock_impl.h

@@ -0,0 +1,87 @@
+// Copyright (c) 2011 Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Do not include this header file directly. Use base/cef_lock.h instead.
+
+#ifndef CEF_INCLUDE_BASE_INTERNAL_CEF_LOCK_IMPL_H_
+#define CEF_INCLUDE_BASE_INTERNAL_CEF_LOCK_IMPL_H_
+
+#include "include/base/cef_build.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#elif defined(OS_POSIX)
+#include <pthread.h>
+#endif
+
+namespace base {
+namespace cef_internal {
+
+// This class implements the underlying platform-specific spin-lock mechanism
+// used for the Lock class.  Most users should not use LockImpl directly, but
+// should instead use Lock.
+class LockImpl {
+ public:
+#if defined(OS_WIN)
+  typedef CRITICAL_SECTION NativeHandle;
+#elif defined(OS_POSIX)
+  typedef pthread_mutex_t NativeHandle;
+#endif
+
+  LockImpl();
+
+  LockImpl(const LockImpl&) = delete;
+  LockImpl& operator=(const LockImpl&) = delete;
+
+  ~LockImpl();
+
+  // If the lock is not held, take it and return true.  If the lock is already
+  // held by something else, immediately return false.
+  bool Try();
+
+  // Take the lock, blocking until it is available if necessary.
+  void Lock();
+
+  // Release the lock.  This must only be called by the lock's holder: after
+  // a successful call to Try, or a call to Lock.
+  void Unlock();
+
+  // Return the native underlying lock.
+  // TODO(awalker): refactor lock and condition variables so that this is
+  // unnecessary.
+  NativeHandle* native_handle() { return &native_handle_; }
+
+ private:
+  NativeHandle native_handle_;
+};
+
+}  // namespace cef_internal
+}  // namespace base
+
+#endif  // CEF_INCLUDE_BASE_INTERNAL_CEF_LOCK_IMPL_H_

Thirdparty/libcef/include/base/internal/cef_raw_scoped_refptr_mismatch_checker.h

@@ -0,0 +1,75 @@
+// Copyright (c) 2011 Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Do not include this header file directly. Use base/cef_callback.h instead.
+
+#ifndef CEF_INCLUDE_BASE_INTERNAL_CEF_RAW_SCOPED_REFPTR_MISMATCH_CHECKER_H_
+#define CEF_INCLUDE_BASE_INTERNAL_CEF_RAW_SCOPED_REFPTR_MISMATCH_CHECKER_H_
+
+#include <type_traits>
+
+#include "include/base/cef_template_util.h"
+
+// It is dangerous to post a task with a T* argument where T is a subtype of
+// RefCounted(Base|ThreadSafeBase), since by the time the parameter is used, the
+// object may already have been deleted since it was not held with a
+// scoped_refptr. Example: http://crbug.com/27191
+// The following set of traits are designed to generate a compile error
+// whenever this antipattern is attempted.
+
+namespace base {
+
+// This is a base internal implementation file used by task.h and callback.h.
+// Not for public consumption, so we wrap it in namespace internal.
+namespace internal {
+
+template <typename T, typename = void>
+struct IsRefCountedType : std::false_type {};
+
+template <typename T>
+struct IsRefCountedType<T,
+                        void_t<decltype(std::declval<T*>()->AddRef()),
+                               decltype(std::declval<T*>()->Release())>>
+    : std::true_type {};
+
+// Human readable translation: you needed to be a scoped_refptr if you are a raw
+// pointer type and are convertible to a RefCounted(Base|ThreadSafeBase) type.
+template <typename T>
+struct NeedsScopedRefptrButGetsRawPtr
+    : conjunction<std::is_pointer<T>,
+                  IsRefCountedType<std::remove_pointer_t<T>>> {
+  static_assert(!std::is_reference<T>::value,
+                "NeedsScopedRefptrButGetsRawPtr requires non-reference type.");
+};
+
+}  // namespace internal
+
+}  // namespace base
+
+#endif  // CEF_INCLUDE_BASE_INTERNAL_CEF_RAW_SCOPED_REFPTR_MISMATCH_CHECKER_H_

Thirdparty/libcef/include/base/internal/cef_scoped_policy.h

@@ -0,0 +1,53 @@
+// Copyright (c) 2012 Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Do not include this header file directly. Use base/memory/scoped_policy.h
+// instead.
+
+#ifndef CEF_INCLUDE_BASE_INTERNAL_CEF_SCOPED_POLICY_H_
+#define CEF_INCLUDE_BASE_INTERNAL_CEF_SCOPED_POLICY_H_
+
+namespace base {
+namespace scoped_policy {
+
+// Defines the ownership policy for a scoped object.
+enum OwnershipPolicy {
+  // The scoped object takes ownership of an object by taking over an existing
+  // ownership claim.
+  ASSUME,
+
+  // The scoped object will retain the object and any initial ownership is
+  // not changed.
+  RETAIN
+};
+
+}  // namespace scoped_policy
+}  // namespace base
+
+#endif  // CEF_INCLUDE_BASE_INTERNAL_CEF_SCOPED_POLICY_H_

Thirdparty/libcef/include/base/internal/cef_thread_checker_impl.h

@@ -0,0 +1,72 @@
+// Copyright (c) 2011 Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Do not include this header file directly. Use base/cef_thread_checker.h
+// instead.
+
+#ifndef CEF_INCLUDE_BASE_INTERNAL_THREAD_CHECKER_IMPL_H_
+#define CEF_INCLUDE_BASE_INTERNAL_THREAD_CHECKER_IMPL_H_
+
+#include "include/base/cef_lock.h"
+#include "include/base/cef_platform_thread.h"
+
+namespace base {
+namespace cef_internal {
+
+// Real implementation of ThreadChecker, for use in debug mode, or
+// for temporary use in release mode (e.g. to CHECK on a threading issue
+// seen only in the wild).
+//
+// Note: You should almost always use the ThreadChecker class to get the
+// right version for your build configuration.
+class ThreadCheckerImpl {
+ public:
+  ThreadCheckerImpl();
+  ~ThreadCheckerImpl();
+
+  bool CalledOnValidThread() const;
+
+  // Changes the thread that is checked for in CalledOnValidThread.  This may
+  // be useful when an object may be created on one thread and then used
+  // exclusively on another thread.
+  void DetachFromThread();
+
+ private:
+  void EnsureThreadIdAssigned() const;
+
+  mutable base::Lock lock_;
+  // This is mutable so that CalledOnValidThread can set it.
+  // It's guarded by |lock_|.
+  mutable PlatformThreadRef valid_thread_id_;
+};
+
+}  // namespace cef_internal
+}  // namespace base
+
+#endif  // CEF_INCLUDE_BASE_INTERNAL_THREAD_CHECKER_IMPL_H_

Thirdparty/libcef/include/capi/cef_accessibility_handler_capi.h

@@ -0,0 +1,81 @@
+// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool and should not edited
+// by hand. See the translator.README.txt file in the tools directory for
+// more information.
+//
+// $hash=306e44d49ab6198a0fa1bcea50e8a25ee18672be$
+//
+
+#ifndef CEF_INCLUDE_CAPI_CEF_ACCESSIBILITY_HANDLER_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_ACCESSIBILITY_HANDLER_CAPI_H_
+#pragma once
+
+#include "include/capi/cef_values_capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+///
+// Implement this structure to receive accessibility notification when
+// accessibility events have been registered. The functions of this structure
+// will be called on the UI thread.
+///
+typedef struct _cef_accessibility_handler_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Called after renderer process sends accessibility tree changes to the
+  // browser process.
+  ///
+  void(CEF_CALLBACK* on_accessibility_tree_change)(
+      struct _cef_accessibility_handler_t* self,
+      struct _cef_value_t* value);
+
+  ///
+  // Called after renderer process sends accessibility location changes to the
+  // browser process.
+  ///
+  void(CEF_CALLBACK* on_accessibility_location_change)(
+      struct _cef_accessibility_handler_t* self,
+      struct _cef_value_t* value);
+} cef_accessibility_handler_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_ACCESSIBILITY_HANDLER_CAPI_H_

Thirdparty/libcef/include/capi/cef_app_capi.h

@@ -0,0 +1,201 @@
+// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool and should not edited
+// by hand. See the translator.README.txt file in the tools directory for
+// more information.
+//
+// $hash=665709ecf3ebad59e85285d319eae72197b9766f$
+//
+
+#ifndef CEF_INCLUDE_CAPI_CEF_APP_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_APP_CAPI_H_
+#pragma once
+
+#include "include/capi/cef_base_capi.h"
+#include "include/capi/cef_browser_process_handler_capi.h"
+#include "include/capi/cef_command_line_capi.h"
+#include "include/capi/cef_render_process_handler_capi.h"
+#include "include/capi/cef_resource_bundle_handler_capi.h"
+#include "include/capi/cef_scheme_capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _cef_app_t;
+
+///
+// Implement this structure to provide handler implementations. Methods will be
+// called by the process and/or thread indicated.
+///
+typedef struct _cef_app_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Provides an opportunity to view and/or modify command-line arguments before
+  // processing by CEF and Chromium. The |process_type| value will be NULL for
+  // the browser process. Do not keep a reference to the cef_command_line_t
+  // object passed to this function. The CefSettings.command_line_args_disabled
+  // value can be used to start with an NULL command-line object. Any values
+  // specified in CefSettings that equate to command-line arguments will be set
+  // before this function is called. Be cautious when using this function to
+  // modify command-line arguments for non-browser processes as this may result
+  // in undefined behavior including crashes.
+  ///
+  void(CEF_CALLBACK* on_before_command_line_processing)(
+      struct _cef_app_t* self,
+      const cef_string_t* process_type,
+      struct _cef_command_line_t* command_line);
+
+  ///
+  // Provides an opportunity to register custom schemes. Do not keep a reference
+  // to the |registrar| object. This function is called on the main thread for
+  // each process and the registered schemes should be the same across all
+  // processes.
+  ///
+  void(CEF_CALLBACK* on_register_custom_schemes)(
+      struct _cef_app_t* self,
+      struct _cef_scheme_registrar_t* registrar);
+
+  ///
+  // Return the handler for resource bundle events. If
+  // CefSettings.pack_loading_disabled is true (1) a handler must be returned.
+  // If no handler is returned resources will be loaded from pack files. This
+  // function is called by the browser and render processes on multiple threads.
+  ///
+  struct _cef_resource_bundle_handler_t*(
+      CEF_CALLBACK* get_resource_bundle_handler)(struct _cef_app_t* self);
+
+  ///
+  // Return the handler for functionality specific to the browser process. This
+  // function is called on multiple threads in the browser process.
+  ///
+  struct _cef_browser_process_handler_t*(
+      CEF_CALLBACK* get_browser_process_handler)(struct _cef_app_t* self);
+
+  ///
+  // Return the handler for functionality specific to the render process. This
+  // function is called on the render process main thread.
+  ///
+  struct _cef_render_process_handler_t*(
+      CEF_CALLBACK* get_render_process_handler)(struct _cef_app_t* self);
+} cef_app_t;
+
+///
+// This function should be called from the application entry point function to
+// execute a secondary process. It can be used to run secondary processes from
+// the browser client executable (default behavior) or from a separate
+// executable specified by the CefSettings.browser_subprocess_path value. If
+// called for the browser process (identified by no "type" command-line value)
+// it will return immediately with a value of -1. If called for a recognized
+// secondary process it will block until the process should exit and then return
+// the process exit code. The |application| parameter may be NULL. The
+// |windows_sandbox_info| parameter is only used on Windows and may be NULL (see
+// cef_sandbox_win.h for details).
+///
+CEF_EXPORT int cef_execute_process(const struct _cef_main_args_t* args,
+                                   cef_app_t* application,
+                                   void* windows_sandbox_info);
+
+///
+// This function should be called on the main application thread to initialize
+// the CEF browser process. The |application| parameter may be NULL. A return
+// value of true (1) indicates that it succeeded and false (0) indicates that it
+// failed. The |windows_sandbox_info| parameter is only used on Windows and may
+// be NULL (see cef_sandbox_win.h for details).
+///
+CEF_EXPORT int cef_initialize(const struct _cef_main_args_t* args,
+                              const struct _cef_settings_t* settings,
+                              cef_app_t* application,
+                              void* windows_sandbox_info);
+
+///
+// This function should be called on the main application thread to shut down
+// the CEF browser process before the application exits.
+///
+CEF_EXPORT void cef_shutdown(void);
+
+///
+// Perform a single iteration of CEF message loop processing. This function is
+// provided for cases where the CEF message loop must be integrated into an
+// existing application message loop. Use of this function is not recommended
+// for most users; use either the cef_run_message_loop() function or
+// CefSettings.multi_threaded_message_loop if possible. When using this function
+// care must be taken to balance performance against excessive CPU usage. It is
+// recommended to enable the CefSettings.external_message_pump option when using
+// this function so that
+// cef_browser_process_handler_t::on_schedule_message_pump_work() callbacks can
+// facilitate the scheduling process. This function should only be called on the
+// main application thread and only if cef_initialize() is called with a
+// CefSettings.multi_threaded_message_loop value of false (0). This function
+// will not block.
+///
+CEF_EXPORT void cef_do_message_loop_work(void);
+
+///
+// Run the CEF message loop. Use this function instead of an application-
+// provided message loop to get the best balance between performance and CPU
+// usage. This function should only be called on the main application thread and
+// only if cef_initialize() is called with a
+// CefSettings.multi_threaded_message_loop value of false (0). This function
+// will block until a quit message is received by the system.
+///
+CEF_EXPORT void cef_run_message_loop(void);
+
+///
+// Quit the CEF message loop that was started by calling cef_run_message_loop().
+// This function should only be called on the main application thread and only
+// if cef_run_message_loop() was used.
+///
+CEF_EXPORT void cef_quit_message_loop(void);
+
+///
+// Set to true (1) before calling Windows APIs like TrackPopupMenu that enter a
+// modal message loop. Set to false (0) after exiting the modal message loop.
+///
+CEF_EXPORT void cef_set_osmodal_loop(int osModalLoop);
+
+///
+// Call during process startup to enable High-DPI support on Windows 7 or newer.
+// Older versions of Windows should be left DPI-unaware because they do not
+// support DirectWrite and GDI fonts are kerned very badly.
+///
+CEF_EXPORT void cef_enable_highdpi_support(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_APP_CAPI_H_

Thirdparty/libcef/include/capi/cef_audio_handler_capi.h

@@ -0,0 +1,121 @@
+// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool and should not edited
+// by hand. See the translator.README.txt file in the tools directory for
+// more information.
+//
+// $hash=62f58ab826b8a3d436655bf0855848632f2a73b5$
+//
+
+#ifndef CEF_INCLUDE_CAPI_CEF_AUDIO_HANDLER_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_AUDIO_HANDLER_CAPI_H_
+#pragma once
+
+#include "include/capi/cef_base_capi.h"
+#include "include/capi/cef_browser_capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+///
+// Implement this structure to handle audio events.
+///
+typedef struct _cef_audio_handler_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Called on the UI thread to allow configuration of audio stream parameters.
+  // Return true (1) to proceed with audio stream capture, or false (0) to
+  // cancel it. All members of |params| can optionally be configured here, but
+  // they are also pre-filled with some sensible defaults.
+  ///
+  int(CEF_CALLBACK* get_audio_parameters)(struct _cef_audio_handler_t* self,
+                                          struct _cef_browser_t* browser,
+                                          cef_audio_parameters_t* params);
+
+  ///
+  // Called on a browser audio capture thread when the browser starts streaming
+  // audio. OnAudioStreamStopped will always be called after
+  // OnAudioStreamStarted; both functions may be called multiple times for the
+  // same browser. |params| contains the audio parameters like sample rate and
+  // channel layout. |channels| is the number of channels.
+  ///
+  void(CEF_CALLBACK* on_audio_stream_started)(
+      struct _cef_audio_handler_t* self,
+      struct _cef_browser_t* browser,
+      const cef_audio_parameters_t* params,
+      int channels);
+
+  ///
+  // Called on the audio stream thread when a PCM packet is received for the
+  // stream. |data| is an array representing the raw PCM data as a floating
+  // point type, i.e. 4-byte value(s). |frames| is the number of frames in the
+  // PCM packet. |pts| is the presentation timestamp (in milliseconds since the
+  // Unix Epoch) and represents the time at which the decompressed packet should
+  // be presented to the user. Based on |frames| and the |channel_layout| value
+  // passed to OnAudioStreamStarted you can calculate the size of the |data|
+  // array in bytes.
+  ///
+  void(CEF_CALLBACK* on_audio_stream_packet)(struct _cef_audio_handler_t* self,
+                                             struct _cef_browser_t* browser,
+                                             const float** data,
+                                             int frames,
+                                             int64 pts);
+
+  ///
+  // Called on the UI thread when the stream has stopped. OnAudioSteamStopped
+  // will always be called after OnAudioStreamStarted; both functions may be
+  // called multiple times for the same stream.
+  ///
+  void(CEF_CALLBACK* on_audio_stream_stopped)(struct _cef_audio_handler_t* self,
+                                              struct _cef_browser_t* browser);
+
+  ///
+  // Called on the UI or audio stream thread when an error occurred. During the
+  // stream creation phase this callback will be called on the UI thread while
+  // in the capturing phase it will be called on the audio stream thread. The
+  // stream will be stopped immediately.
+  ///
+  void(CEF_CALLBACK* on_audio_stream_error)(struct _cef_audio_handler_t* self,
+                                            struct _cef_browser_t* browser,
+                                            const cef_string_t* message);
+} cef_audio_handler_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_AUDIO_HANDLER_CAPI_H_

Thirdparty/libcef/include/capi/cef_auth_callback_capi.h

@@ -0,0 +1,76 @@
+// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool and should not edited
+// by hand. See the translator.README.txt file in the tools directory for
+// more information.
+//
+// $hash=01a33de48ac9780f78d606d8aee2429ddb0c81a2$
+//
+
+#ifndef CEF_INCLUDE_CAPI_CEF_AUTH_CALLBACK_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_AUTH_CALLBACK_CAPI_H_
+#pragma once
+
+#include "include/capi/cef_base_capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+///
+// Callback structure used for asynchronous continuation of authentication
+// requests.
+///
+typedef struct _cef_auth_callback_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Continue the authentication request.
+  ///
+  void(CEF_CALLBACK* cont)(struct _cef_auth_callback_t* self,
+                           const cef_string_t* username,
+                           const cef_string_t* password);
+
+  ///
+  // Cancel the authentication request.
+  ///
+  void(CEF_CALLBACK* cancel)(struct _cef_auth_callback_t* self);
+} cef_auth_callback_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_AUTH_CALLBACK_CAPI_H_

Thirdparty/libcef/include/capi/cef_base_capi.h

@@ -0,0 +1,107 @@
+// Copyright (c) 2014 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CEF_INCLUDE_CAPI_CEF_BASE_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_BASE_CAPI_H_
+
+#include <stdint.h>
+
+#include "include/internal/cef_export.h"
+#include "include/internal/cef_string.h"
+#include "include/internal/cef_string_list.h"
+#include "include/internal/cef_string_map.h"
+#include "include/internal/cef_string_multimap.h"
+#include "include/internal/cef_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+///
+// All ref-counted framework structures must include this structure first.
+///
+typedef struct _cef_base_ref_counted_t {
+  ///
+  // Size of the data structure.
+  ///
+  size_t size;
+
+  ///
+  // Called to increment the reference count for the object. Should be called
+  // for every new copy of a pointer to a given object.
+  ///
+  void(CEF_CALLBACK* add_ref)(struct _cef_base_ref_counted_t* self);
+
+  ///
+  // Called to decrement the reference count for the object. If the reference
+  // count falls to 0 the object should self-delete. Returns true (1) if the
+  // resulting reference count is 0.
+  ///
+  int(CEF_CALLBACK* release)(struct _cef_base_ref_counted_t* self);
+
+  ///
+  // Returns true (1) if the current reference count is 1.
+  ///
+  int(CEF_CALLBACK* has_one_ref)(struct _cef_base_ref_counted_t* self);
+
+  ///
+  // Returns true (1) if the current reference count is at least 1.
+  ///
+  int(CEF_CALLBACK* has_at_least_one_ref)(struct _cef_base_ref_counted_t* self);
+} cef_base_ref_counted_t;
+
+///
+// All scoped framework structures must include this structure first.
+///
+typedef struct _cef_base_scoped_t {
+  ///
+  // Size of the data structure.
+  ///
+  size_t size;
+
+  ///
+  // Called to delete this object. May be NULL if the object is not owned.
+  ///
+  void(CEF_CALLBACK* del)(struct _cef_base_scoped_t* self);
+
+} cef_base_scoped_t;
+
+// Check that the structure |s|, which is defined with a size_t member at the
+// top, is large enough to contain the specified member |f|.
+#define CEF_MEMBER_EXISTS(s, f) \
+  ((intptr_t) &                 \
+   ((s)->f) - (intptr_t)(s) + sizeof((s)->f) <= *reinterpret_cast<size_t*>(s))
+
+#define CEF_MEMBER_MISSING(s, f) (!CEF_MEMBER_EXISTS(s, f) || !((s)->f))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_BASE_CAPI_H_

Thirdparty/libcef/include/capi/cef_browser_capi.h

@@ -0,0 +1,949 @@
+// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool and should not edited
+// by hand. See the translator.README.txt file in the tools directory for
+// more information.
+//
+// $hash=b1c1e44e6d3842064ef6e5b9823173f7ec1fcccc$
+//
+
+#ifndef CEF_INCLUDE_CAPI_CEF_BROWSER_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_BROWSER_CAPI_H_
+#pragma once
+
+#include "include/capi/cef_base_capi.h"
+#include "include/capi/cef_devtools_message_observer_capi.h"
+#include "include/capi/cef_drag_data_capi.h"
+#include "include/capi/cef_frame_capi.h"
+#include "include/capi/cef_image_capi.h"
+#include "include/capi/cef_navigation_entry_capi.h"
+#include "include/capi/cef_registration_capi.h"
+#include "include/capi/cef_request_context_capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _cef_browser_host_t;
+struct _cef_client_t;
+
+///
+// Structure used to represent a browser. When used in the browser process the
+// functions of this structure may be called on any thread unless otherwise
+// indicated in the comments. When used in the render process the functions of
+// this structure may only be called on the main thread.
+///
+typedef struct _cef_browser_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // True if this object is currently valid. This will return false (0) after
+  // cef_life_span_handler_t::OnBeforeClose is called.
+  ///
+  int(CEF_CALLBACK* is_valid)(struct _cef_browser_t* self);
+
+  ///
+  // Returns the browser host object. This function can only be called in the
+  // browser process.
+  ///
+  struct _cef_browser_host_t*(CEF_CALLBACK* get_host)(
+      struct _cef_browser_t* self);
+
+  ///
+  // Returns true (1) if the browser can navigate backwards.
+  ///
+  int(CEF_CALLBACK* can_go_back)(struct _cef_browser_t* self);
+
+  ///
+  // Navigate backwards.
+  ///
+  void(CEF_CALLBACK* go_back)(struct _cef_browser_t* self);
+
+  ///
+  // Returns true (1) if the browser can navigate forwards.
+  ///
+  int(CEF_CALLBACK* can_go_forward)(struct _cef_browser_t* self);
+
+  ///
+  // Navigate forwards.
+  ///
+  void(CEF_CALLBACK* go_forward)(struct _cef_browser_t* self);
+
+  ///
+  // Returns true (1) if the browser is currently loading.
+  ///
+  int(CEF_CALLBACK* is_loading)(struct _cef_browser_t* self);
+
+  ///
+  // Reload the current page.
+  ///
+  void(CEF_CALLBACK* reload)(struct _cef_browser_t* self);
+
+  ///
+  // Reload the current page ignoring any cached data.
+  ///
+  void(CEF_CALLBACK* reload_ignore_cache)(struct _cef_browser_t* self);
+
+  ///
+  // Stop loading the page.
+  ///
+  void(CEF_CALLBACK* stop_load)(struct _cef_browser_t* self);
+
+  ///
+  // Returns the globally unique identifier for this browser. This value is also
+  // used as the tabId for extension APIs.
+  ///
+  int(CEF_CALLBACK* get_identifier)(struct _cef_browser_t* self);
+
+  ///
+  // Returns true (1) if this object is pointing to the same handle as |that|
+  // object.
+  ///
+  int(CEF_CALLBACK* is_same)(struct _cef_browser_t* self,
+                             struct _cef_browser_t* that);
+
+  ///
+  // Returns true (1) if the browser is a popup.
+  ///
+  int(CEF_CALLBACK* is_popup)(struct _cef_browser_t* self);
+
+  ///
+  // Returns true (1) if a document has been loaded in the browser.
+  ///
+  int(CEF_CALLBACK* has_document)(struct _cef_browser_t* self);
+
+  ///
+  // Returns the main (top-level) frame for the browser. In the browser process
+  // this will return a valid object until after
+  // cef_life_span_handler_t::OnBeforeClose is called. In the renderer process
+  // this will return NULL if the main frame is hosted in a different renderer
+  // process (e.g. for cross-origin sub-frames). The main frame object will
+  // change during cross-origin navigation or re-navigation after renderer
+  // process termination (due to crashes, etc).
+  ///
+  struct _cef_frame_t*(CEF_CALLBACK* get_main_frame)(
+      struct _cef_browser_t* self);
+
+  ///
+  // Returns the focused frame for the browser.
+  ///
+  struct _cef_frame_t*(CEF_CALLBACK* get_focused_frame)(
+      struct _cef_browser_t* self);
+
+  ///
+  // Returns the frame with the specified identifier, or NULL if not found.
+  ///
+  struct _cef_frame_t*(CEF_CALLBACK* get_frame_byident)(
+      struct _cef_browser_t* self,
+      int64 identifier);
+
+  ///
+  // Returns the frame with the specified name, or NULL if not found.
+  ///
+  struct _cef_frame_t*(CEF_CALLBACK* get_frame)(struct _cef_browser_t* self,
+                                                const cef_string_t* name);
+
+  ///
+  // Returns the number of frames that currently exist.
+  ///
+  size_t(CEF_CALLBACK* get_frame_count)(struct _cef_browser_t* self);
+
+  ///
+  // Returns the identifiers of all existing frames.
+  ///
+  void(CEF_CALLBACK* get_frame_identifiers)(struct _cef_browser_t* self,
+                                            size_t* identifiersCount,
+                                            int64* identifiers);
+
+  ///
+  // Returns the names of all existing frames.
+  ///
+  void(CEF_CALLBACK* get_frame_names)(struct _cef_browser_t* self,
+                                      cef_string_list_t names);
+} cef_browser_t;
+
+///
+// Callback structure for cef_browser_host_t::RunFileDialog. The functions of
+// this structure will be called on the browser process UI thread.
+///
+typedef struct _cef_run_file_dialog_callback_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Called asynchronously after the file dialog is dismissed. |file_paths| will
+  // be a single value or a list of values depending on the dialog mode. If the
+  // selection was cancelled |file_paths| will be NULL.
+  ///
+  void(CEF_CALLBACK* on_file_dialog_dismissed)(
+      struct _cef_run_file_dialog_callback_t* self,
+      cef_string_list_t file_paths);
+} cef_run_file_dialog_callback_t;
+
+///
+// Callback structure for cef_browser_host_t::GetNavigationEntries. The
+// functions of this structure will be called on the browser process UI thread.
+///
+typedef struct _cef_navigation_entry_visitor_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Method that will be executed. Do not keep a reference to |entry| outside of
+  // this callback. Return true (1) to continue visiting entries or false (0) to
+  // stop. |current| is true (1) if this entry is the currently loaded
+  // navigation entry. |index| is the 0-based index of this entry and |total| is
+  // the total number of entries.
+  ///
+  int(CEF_CALLBACK* visit)(struct _cef_navigation_entry_visitor_t* self,
+                           struct _cef_navigation_entry_t* entry,
+                           int current,
+                           int index,
+                           int total);
+} cef_navigation_entry_visitor_t;
+
+///
+// Callback structure for cef_browser_host_t::PrintToPDF. The functions of this
+// structure will be called on the browser process UI thread.
+///
+typedef struct _cef_pdf_print_callback_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Method that will be executed when the PDF printing has completed. |path| is
+  // the output path. |ok| will be true (1) if the printing completed
+  // successfully or false (0) otherwise.
+  ///
+  void(CEF_CALLBACK* on_pdf_print_finished)(
+      struct _cef_pdf_print_callback_t* self,
+      const cef_string_t* path,
+      int ok);
+} cef_pdf_print_callback_t;
+
+///
+// Callback structure for cef_browser_host_t::DownloadImage. The functions of
+// this structure will be called on the browser process UI thread.
+///
+typedef struct _cef_download_image_callback_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Method that will be executed when the image download has completed.
+  // |image_url| is the URL that was downloaded and |http_status_code| is the
+  // resulting HTTP status code. |image| is the resulting image, possibly at
+  // multiple scale factors, or NULL if the download failed.
+  ///
+  void(CEF_CALLBACK* on_download_image_finished)(
+      struct _cef_download_image_callback_t* self,
+      const cef_string_t* image_url,
+      int http_status_code,
+      struct _cef_image_t* image);
+} cef_download_image_callback_t;
+
+///
+// Structure used to represent the browser process aspects of a browser. The
+// functions of this structure can only be called in the browser process. They
+// may be called on any thread in that process unless otherwise indicated in the
+// comments.
+///
+typedef struct _cef_browser_host_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Returns the hosted browser object.
+  ///
+  struct _cef_browser_t*(CEF_CALLBACK* get_browser)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Request that the browser close. The JavaScript 'onbeforeunload' event will
+  // be fired. If |force_close| is false (0) the event handler, if any, will be
+  // allowed to prompt the user and the user can optionally cancel the close. If
+  // |force_close| is true (1) the prompt will not be displayed and the close
+  // will proceed. Results in a call to cef_life_span_handler_t::do_close() if
+  // the event handler allows the close or if |force_close| is true (1). See
+  // cef_life_span_handler_t::do_close() documentation for additional usage
+  // information.
+  ///
+  void(CEF_CALLBACK* close_browser)(struct _cef_browser_host_t* self,
+                                    int force_close);
+
+  ///
+  // Helper for closing a browser. Call this function from the top-level window
+  // close handler (if any). Internally this calls CloseBrowser(false (0)) if
+  // the close has not yet been initiated. This function returns false (0) while
+  // the close is pending and true (1) after the close has completed. See
+  // close_browser() and cef_life_span_handler_t::do_close() documentation for
+  // additional usage information. This function must be called on the browser
+  // process UI thread.
+  ///
+  int(CEF_CALLBACK* try_close_browser)(struct _cef_browser_host_t* self);
+
+  ///
+  // Set whether the browser is focused.
+  ///
+  void(CEF_CALLBACK* set_focus)(struct _cef_browser_host_t* self, int focus);
+
+  ///
+  // Retrieve the window handle (if any) for this browser. If this browser is
+  // wrapped in a cef_browser_view_t this function should be called on the
+  // browser process UI thread and it will return the handle for the top-level
+  // native window.
+  ///
+  cef_window_handle_t(CEF_CALLBACK* get_window_handle)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Retrieve the window handle (if any) of the browser that opened this
+  // browser. Will return NULL for non-popup browsers or if this browser is
+  // wrapped in a cef_browser_view_t. This function can be used in combination
+  // with custom handling of modal windows.
+  ///
+  cef_window_handle_t(CEF_CALLBACK* get_opener_window_handle)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Returns true (1) if this browser is wrapped in a cef_browser_view_t.
+  ///
+  int(CEF_CALLBACK* has_view)(struct _cef_browser_host_t* self);
+
+  ///
+  // Returns the client for this browser.
+  ///
+  struct _cef_client_t*(CEF_CALLBACK* get_client)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Returns the request context for this browser.
+  ///
+  struct _cef_request_context_t*(CEF_CALLBACK* get_request_context)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Get the current zoom level. The default zoom level is 0.0. This function
+  // can only be called on the UI thread.
+  ///
+  double(CEF_CALLBACK* get_zoom_level)(struct _cef_browser_host_t* self);
+
+  ///
+  // Change the zoom level to the specified value. Specify 0.0 to reset the zoom
+  // level. If called on the UI thread the change will be applied immediately.
+  // Otherwise, the change will be applied asynchronously on the UI thread.
+  ///
+  void(CEF_CALLBACK* set_zoom_level)(struct _cef_browser_host_t* self,
+                                     double zoomLevel);
+
+  ///
+  // Call to run a file chooser dialog. Only a single file chooser dialog may be
+  // pending at any given time. |mode| represents the type of dialog to display.
+  // |title| to the title to be used for the dialog and may be NULL to show the
+  // default title ("Open" or "Save" depending on the mode). |default_file_path|
+  // is the path with optional directory and/or file name component that will be
+  // initially selected in the dialog. |accept_filters| are used to restrict the
+  // selectable file types and may any combination of (a) valid lower-cased MIME
+  // types (e.g. "text/*" or "image/*"), (b) individual file extensions (e.g.
+  // ".txt" or ".png"), or (c) combined description and file extension delimited
+  // using "|" and ";" (e.g. "Image Types|.png;.gif;.jpg"). |callback| will be
+  // executed after the dialog is dismissed or immediately if another dialog is
+  // already pending. The dialog will be initiated asynchronously on the UI
+  // thread.
+  ///
+  void(CEF_CALLBACK* run_file_dialog)(
+      struct _cef_browser_host_t* self,
+      cef_file_dialog_mode_t mode,
+      const cef_string_t* title,
+      const cef_string_t* default_file_path,
+      cef_string_list_t accept_filters,
+      struct _cef_run_file_dialog_callback_t* callback);
+
+  ///
+  // Download the file at |url| using cef_download_handler_t.
+  ///
+  void(CEF_CALLBACK* start_download)(struct _cef_browser_host_t* self,
+                                     const cef_string_t* url);
+
+  ///
+  // Download |image_url| and execute |callback| on completion with the images
+  // received from the renderer. If |is_favicon| is true (1) then cookies are
+  // not sent and not accepted during download. Images with density independent
+  // pixel (DIP) sizes larger than |max_image_size| are filtered out from the
+  // image results. Versions of the image at different scale factors may be
+  // downloaded up to the maximum scale factor supported by the system. If there
+  // are no image results <= |max_image_size| then the smallest image is resized
+  // to |max_image_size| and is the only result. A |max_image_size| of 0 means
+  // unlimited. If |bypass_cache| is true (1) then |image_url| is requested from
+  // the server even if it is present in the browser cache.
+  ///
+  void(CEF_CALLBACK* download_image)(
+      struct _cef_browser_host_t* self,
+      const cef_string_t* image_url,
+      int is_favicon,
+      uint32 max_image_size,
+      int bypass_cache,
+      struct _cef_download_image_callback_t* callback);
+
+  ///
+  // Print the current browser contents.
+  ///
+  void(CEF_CALLBACK* print)(struct _cef_browser_host_t* self);
+
+  ///
+  // Print the current browser contents to the PDF file specified by |path| and
+  // execute |callback| on completion. The caller is responsible for deleting
+  // |path| when done. For PDF printing to work on Linux you must implement the
+  // cef_print_handler_t::GetPdfPaperSize function.
+  ///
+  void(CEF_CALLBACK* print_to_pdf)(
+      struct _cef_browser_host_t* self,
+      const cef_string_t* path,
+      const struct _cef_pdf_print_settings_t* settings,
+      struct _cef_pdf_print_callback_t* callback);
+
+  ///
+  // Search for |searchText|. |forward| indicates whether to search forward or
+  // backward within the page. |matchCase| indicates whether the search should
+  // be case-sensitive. |findNext| indicates whether this is the first request
+  // or a follow-up. The search will be restarted if |searchText| or |matchCase|
+  // change. The search will be stopped if |searchText| is NULL. The
+  // cef_find_handler_t instance, if any, returned via
+  // cef_client_t::GetFindHandler will be called to report find results.
+  ///
+  void(CEF_CALLBACK* find)(struct _cef_browser_host_t* self,
+                           const cef_string_t* searchText,
+                           int forward,
+                           int matchCase,
+                           int findNext);
+
+  ///
+  // Cancel all searches that are currently going on.
+  ///
+  void(CEF_CALLBACK* stop_finding)(struct _cef_browser_host_t* self,
+                                   int clearSelection);
+
+  ///
+  // Open developer tools (DevTools) in its own browser. The DevTools browser
+  // will remain associated with this browser. If the DevTools browser is
+  // already open then it will be focused, in which case the |windowInfo|,
+  // |client| and |settings| parameters will be ignored. If |inspect_element_at|
+  // is non-NULL then the element at the specified (x,y) location will be
+  // inspected. The |windowInfo| parameter will be ignored if this browser is
+  // wrapped in a cef_browser_view_t.
+  ///
+  void(CEF_CALLBACK* show_dev_tools)(
+      struct _cef_browser_host_t* self,
+      const struct _cef_window_info_t* windowInfo,
+      struct _cef_client_t* client,
+      const struct _cef_browser_settings_t* settings,
+      const cef_point_t* inspect_element_at);
+
+  ///
+  // Explicitly close the associated DevTools browser, if any.
+  ///
+  void(CEF_CALLBACK* close_dev_tools)(struct _cef_browser_host_t* self);
+
+  ///
+  // Returns true (1) if this browser currently has an associated DevTools
+  // browser. Must be called on the browser process UI thread.
+  ///
+  int(CEF_CALLBACK* has_dev_tools)(struct _cef_browser_host_t* self);
+
+  ///
+  // Send a function call message over the DevTools protocol. |message| must be
+  // a UTF8-encoded JSON dictionary that contains "id" (int), "function"
+  // (string) and "params" (dictionary, optional) values. See the DevTools
+  // protocol documentation at https://chromedevtools.github.io/devtools-
+  // protocol/ for details of supported functions and the expected "params"
+  // dictionary contents. |message| will be copied if necessary. This function
+  // will return true (1) if called on the UI thread and the message was
+  // successfully submitted for validation, otherwise false (0). Validation will
+  // be applied asynchronously and any messages that fail due to formatting
+  // errors or missing parameters may be discarded without notification. Prefer
+  // ExecuteDevToolsMethod if a more structured approach to message formatting
+  // is desired.
+  //
+  // Every valid function call will result in an asynchronous function result or
+  // error message that references the sent message "id". Event messages are
+  // received while notifications are enabled (for example, between function
+  // calls for "Page.enable" and "Page.disable"). All received messages will be
+  // delivered to the observer(s) registered with AddDevToolsMessageObserver.
+  // See cef_dev_tools_message_observer_t::OnDevToolsMessage documentation for
+  // details of received message contents.
+  //
+  // Usage of the SendDevToolsMessage, ExecuteDevToolsMethod and
+  // AddDevToolsMessageObserver functions does not require an active DevTools
+  // front-end or remote-debugging session. Other active DevTools sessions will
+  // continue to function independently. However, any modification of global
+  // browser state by one session may not be reflected in the UI of other
+  // sessions.
+  //
+  // Communication with the DevTools front-end (when displayed) can be logged
+  // for development purposes by passing the `--devtools-protocol-log-
+  // file=<path>` command-line flag.
+  ///
+  int(CEF_CALLBACK* send_dev_tools_message)(struct _cef_browser_host_t* self,
+                                            const void* message,
+                                            size_t message_size);
+
+  ///
+  // Execute a function call over the DevTools protocol. This is a more
+  // structured version of SendDevToolsMessage. |message_id| is an incremental
+  // number that uniquely identifies the message (pass 0 to have the next number
+  // assigned automatically based on previous values). |function| is the
+  // function name. |params| are the function parameters, which may be NULL. See
+  // the DevTools protocol documentation (linked above) for details of supported
+  // functions and the expected |params| dictionary contents. This function will
+  // return the assigned message ID if called on the UI thread and the message
+  // was successfully submitted for validation, otherwise 0. See the
+  // SendDevToolsMessage documentation for additional usage information.
+  ///
+  int(CEF_CALLBACK* execute_dev_tools_method)(
+      struct _cef_browser_host_t* self,
+      int message_id,
+      const cef_string_t* method,
+      struct _cef_dictionary_value_t* params);
+
+  ///
+  // Add an observer for DevTools protocol messages (function results and
+  // events). The observer will remain registered until the returned
+  // Registration object is destroyed. See the SendDevToolsMessage documentation
+  // for additional usage information.
+  ///
+  struct _cef_registration_t*(CEF_CALLBACK* add_dev_tools_message_observer)(
+      struct _cef_browser_host_t* self,
+      struct _cef_dev_tools_message_observer_t* observer);
+
+  ///
+  // Retrieve a snapshot of current navigation entries as values sent to the
+  // specified visitor. If |current_only| is true (1) only the current
+  // navigation entry will be sent, otherwise all navigation entries will be
+  // sent.
+  ///
+  void(CEF_CALLBACK* get_navigation_entries)(
+      struct _cef_browser_host_t* self,
+      struct _cef_navigation_entry_visitor_t* visitor,
+      int current_only);
+
+  ///
+  // If a misspelled word is currently selected in an editable node calling this
+  // function will replace it with the specified |word|.
+  ///
+  void(CEF_CALLBACK* replace_misspelling)(struct _cef_browser_host_t* self,
+                                          const cef_string_t* word);
+
+  ///
+  // Add the specified |word| to the spelling dictionary.
+  ///
+  void(CEF_CALLBACK* add_word_to_dictionary)(struct _cef_browser_host_t* self,
+                                             const cef_string_t* word);
+
+  ///
+  // Returns true (1) if window rendering is disabled.
+  ///
+  int(CEF_CALLBACK* is_window_rendering_disabled)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Notify the browser that the widget has been resized. The browser will first
+  // call cef_render_handler_t::GetViewRect to get the new size and then call
+  // cef_render_handler_t::OnPaint asynchronously with the updated regions. This
+  // function is only used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* was_resized)(struct _cef_browser_host_t* self);
+
+  ///
+  // Notify the browser that it has been hidden or shown. Layouting and
+  // cef_render_handler_t::OnPaint notification will stop when the browser is
+  // hidden. This function is only used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* was_hidden)(struct _cef_browser_host_t* self, int hidden);
+
+  ///
+  // Send a notification to the browser that the screen info has changed. The
+  // browser will then call cef_render_handler_t::GetScreenInfo to update the
+  // screen information with the new values. This simulates moving the webview
+  // window from one display to another, or changing the properties of the
+  // current display. This function is only used when window rendering is
+  // disabled.
+  ///
+  void(CEF_CALLBACK* notify_screen_info_changed)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Invalidate the view. The browser will call cef_render_handler_t::OnPaint
+  // asynchronously. This function is only used when window rendering is
+  // disabled.
+  ///
+  void(CEF_CALLBACK* invalidate)(struct _cef_browser_host_t* self,
+                                 cef_paint_element_type_t type);
+
+  ///
+  // Issue a BeginFrame request to Chromium.  Only valid when
+  // cef_window_tInfo::external_begin_frame_enabled is set to true (1).
+  ///
+  void(CEF_CALLBACK* send_external_begin_frame)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Send a key event to the browser.
+  ///
+  void(CEF_CALLBACK* send_key_event)(struct _cef_browser_host_t* self,
+                                     const struct _cef_key_event_t* event);
+
+  ///
+  // Send a mouse click event to the browser. The |x| and |y| coordinates are
+  // relative to the upper-left corner of the view.
+  ///
+  void(CEF_CALLBACK* send_mouse_click_event)(
+      struct _cef_browser_host_t* self,
+      const struct _cef_mouse_event_t* event,
+      cef_mouse_button_type_t type,
+      int mouseUp,
+      int clickCount);
+
+  ///
+  // Send a mouse move event to the browser. The |x| and |y| coordinates are
+  // relative to the upper-left corner of the view.
+  ///
+  void(CEF_CALLBACK* send_mouse_move_event)(
+      struct _cef_browser_host_t* self,
+      const struct _cef_mouse_event_t* event,
+      int mouseLeave);
+
+  ///
+  // Send a mouse wheel event to the browser. The |x| and |y| coordinates are
+  // relative to the upper-left corner of the view. The |deltaX| and |deltaY|
+  // values represent the movement delta in the X and Y directions respectively.
+  // In order to scroll inside select popups with window rendering disabled
+  // cef_render_handler_t::GetScreenPoint should be implemented properly.
+  ///
+  void(CEF_CALLBACK* send_mouse_wheel_event)(
+      struct _cef_browser_host_t* self,
+      const struct _cef_mouse_event_t* event,
+      int deltaX,
+      int deltaY);
+
+  ///
+  // Send a touch event to the browser for a windowless browser.
+  ///
+  void(CEF_CALLBACK* send_touch_event)(struct _cef_browser_host_t* self,
+                                       const struct _cef_touch_event_t* event);
+
+  ///
+  // Send a capture lost event to the browser.
+  ///
+  void(CEF_CALLBACK* send_capture_lost_event)(struct _cef_browser_host_t* self);
+
+  ///
+  // Notify the browser that the window hosting it is about to be moved or
+  // resized. This function is only used on Windows and Linux.
+  ///
+  void(CEF_CALLBACK* notify_move_or_resize_started)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Returns the maximum rate in frames per second (fps) that
+  // cef_render_handler_t:: OnPaint will be called for a windowless browser. The
+  // actual fps may be lower if the browser cannot generate frames at the
+  // requested rate. The minimum value is 1 and the maximum value is 60 (default
+  // 30). This function can only be called on the UI thread.
+  ///
+  int(CEF_CALLBACK* get_windowless_frame_rate)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Set the maximum rate in frames per second (fps) that cef_render_handler_t::
+  // OnPaint will be called for a windowless browser. The actual fps may be
+  // lower if the browser cannot generate frames at the requested rate. The
+  // minimum value is 1 and the maximum value is 60 (default 30). Can also be
+  // set at browser creation via cef_browser_tSettings.windowless_frame_rate.
+  ///
+  void(CEF_CALLBACK* set_windowless_frame_rate)(
+      struct _cef_browser_host_t* self,
+      int frame_rate);
+
+  ///
+  // Begins a new composition or updates the existing composition. Blink has a
+  // special node (a composition node) that allows the input function to change
+  // text without affecting other DOM nodes. |text| is the optional text that
+  // will be inserted into the composition node. |underlines| is an optional set
+  // of ranges that will be underlined in the resulting text.
+  // |replacement_range| is an optional range of the existing text that will be
+  // replaced. |selection_range| is an optional range of the resulting text that
+  // will be selected after insertion or replacement. The |replacement_range|
+  // value is only used on OS X.
+  //
+  // This function may be called multiple times as the composition changes. When
+  // the client is done making changes the composition should either be canceled
+  // or completed. To cancel the composition call ImeCancelComposition. To
+  // complete the composition call either ImeCommitText or
+  // ImeFinishComposingText. Completion is usually signaled when:
+  //   A. The client receives a WM_IME_COMPOSITION message with a GCS_RESULTSTR
+  //      flag (on Windows), or;
+  //   B. The client receives a "commit" signal of GtkIMContext (on Linux), or;
+  //   C. insertText of NSTextInput is called (on Mac).
+  //
+  // This function is only used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* ime_set_composition)(
+      struct _cef_browser_host_t* self,
+      const cef_string_t* text,
+      size_t underlinesCount,
+      cef_composition_underline_t const* underlines,
+      const cef_range_t* replacement_range,
+      const cef_range_t* selection_range);
+
+  ///
+  // Completes the existing composition by optionally inserting the specified
+  // |text| into the composition node. |replacement_range| is an optional range
+  // of the existing text that will be replaced. |relative_cursor_pos| is where
+  // the cursor will be positioned relative to the current cursor position. See
+  // comments on ImeSetComposition for usage. The |replacement_range| and
+  // |relative_cursor_pos| values are only used on OS X. This function is only
+  // used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* ime_commit_text)(struct _cef_browser_host_t* self,
+                                      const cef_string_t* text,
+                                      const cef_range_t* replacement_range,
+                                      int relative_cursor_pos);
+
+  ///
+  // Completes the existing composition by applying the current composition node
+  // contents. If |keep_selection| is false (0) the current selection, if any,
+  // will be discarded. See comments on ImeSetComposition for usage. This
+  // function is only used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* ime_finish_composing_text)(
+      struct _cef_browser_host_t* self,
+      int keep_selection);
+
+  ///
+  // Cancels the existing composition and discards the composition node contents
+  // without applying them. See comments on ImeSetComposition for usage. This
+  // function is only used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* ime_cancel_composition)(struct _cef_browser_host_t* self);
+
+  ///
+  // Call this function when the user drags the mouse into the web view (before
+  // calling DragTargetDragOver/DragTargetLeave/DragTargetDrop). |drag_data|
+  // should not contain file contents as this type of data is not allowed to be
+  // dragged into the web view. File contents can be removed using
+  // cef_drag_data_t::ResetFileContents (for example, if |drag_data| comes from
+  // cef_render_handler_t::StartDragging). This function is only used when
+  // window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* drag_target_drag_enter)(
+      struct _cef_browser_host_t* self,
+      struct _cef_drag_data_t* drag_data,
+      const struct _cef_mouse_event_t* event,
+      cef_drag_operations_mask_t allowed_ops);
+
+  ///
+  // Call this function each time the mouse is moved across the web view during
+  // a drag operation (after calling DragTargetDragEnter and before calling
+  // DragTargetDragLeave/DragTargetDrop). This function is only used when window
+  // rendering is disabled.
+  ///
+  void(CEF_CALLBACK* drag_target_drag_over)(
+      struct _cef_browser_host_t* self,
+      const struct _cef_mouse_event_t* event,
+      cef_drag_operations_mask_t allowed_ops);
+
+  ///
+  // Call this function when the user drags the mouse out of the web view (after
+  // calling DragTargetDragEnter). This function is only used when window
+  // rendering is disabled.
+  ///
+  void(CEF_CALLBACK* drag_target_drag_leave)(struct _cef_browser_host_t* self);
+
+  ///
+  // Call this function when the user completes the drag operation by dropping
+  // the object onto the web view (after calling DragTargetDragEnter). The
+  // object being dropped is |drag_data|, given as an argument to the previous
+  // DragTargetDragEnter call. This function is only used when window rendering
+  // is disabled.
+  ///
+  void(CEF_CALLBACK* drag_target_drop)(struct _cef_browser_host_t* self,
+                                       const struct _cef_mouse_event_t* event);
+
+  ///
+  // Call this function when the drag operation started by a
+  // cef_render_handler_t::StartDragging call has ended either in a drop or by
+  // being cancelled. |x| and |y| are mouse coordinates relative to the upper-
+  // left corner of the view. If the web view is both the drag source and the
+  // drag target then all DragTarget* functions should be called before
+  // DragSource* mthods. This function is only used when window rendering is
+  // disabled.
+  ///
+  void(CEF_CALLBACK* drag_source_ended_at)(struct _cef_browser_host_t* self,
+                                           int x,
+                                           int y,
+                                           cef_drag_operations_mask_t op);
+
+  ///
+  // Call this function when the drag operation started by a
+  // cef_render_handler_t::StartDragging call has completed. This function may
+  // be called immediately without first calling DragSourceEndedAt to cancel a
+  // drag operation. If the web view is both the drag source and the drag target
+  // then all DragTarget* functions should be called before DragSource* mthods.
+  // This function is only used when window rendering is disabled.
+  ///
+  void(CEF_CALLBACK* drag_source_system_drag_ended)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Returns the current visible navigation entry for this browser. This
+  // function can only be called on the UI thread.
+  ///
+  struct _cef_navigation_entry_t*(CEF_CALLBACK* get_visible_navigation_entry)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Set accessibility state for all frames. |accessibility_state| may be
+  // default, enabled or disabled. If |accessibility_state| is STATE_DEFAULT
+  // then accessibility will be disabled by default and the state may be further
+  // controlled with the "force-renderer-accessibility" and "disable-renderer-
+  // accessibility" command-line switches. If |accessibility_state| is
+  // STATE_ENABLED then accessibility will be enabled. If |accessibility_state|
+  // is STATE_DISABLED then accessibility will be completely disabled.
+  //
+  // For windowed browsers accessibility will be enabled in Complete mode (which
+  // corresponds to kAccessibilityModeComplete in Chromium). In this mode all
+  // platform accessibility objects will be created and managed by Chromium's
+  // internal implementation. The client needs only to detect the screen reader
+  // and call this function appropriately. For example, on macOS the client can
+  // handle the @"AXEnhancedUserStructure" accessibility attribute to detect
+  // VoiceOver state changes and on Windows the client can handle WM_GETOBJECT
+  // with OBJID_CLIENT to detect accessibility readers.
+  //
+  // For windowless browsers accessibility will be enabled in TreeOnly mode
+  // (which corresponds to kAccessibilityModeWebContentsOnly in Chromium). In
+  // this mode renderer accessibility is enabled, the full tree is computed, and
+  // events are passed to CefAccessibiltyHandler, but platform accessibility
+  // objects are not created. The client may implement platform accessibility
+  // objects using CefAccessibiltyHandler callbacks if desired.
+  ///
+  void(CEF_CALLBACK* set_accessibility_state)(struct _cef_browser_host_t* self,
+                                              cef_state_t accessibility_state);
+
+  ///
+  // Enable notifications of auto resize via
+  // cef_display_handler_t::OnAutoResize. Notifications are disabled by default.
+  // |min_size| and |max_size| define the range of allowed sizes.
+  ///
+  void(CEF_CALLBACK* set_auto_resize_enabled)(struct _cef_browser_host_t* self,
+                                              int enabled,
+                                              const cef_size_t* min_size,
+                                              const cef_size_t* max_size);
+
+  ///
+  // Returns the extension hosted in this browser or NULL if no extension is
+  // hosted. See cef_request_context_t::LoadExtension for details.
+  ///
+  struct _cef_extension_t*(CEF_CALLBACK* get_extension)(
+      struct _cef_browser_host_t* self);
+
+  ///
+  // Returns true (1) if this browser is hosting an extension background script.
+  // Background hosts do not have a window and are not displayable. See
+  // cef_request_context_t::LoadExtension for details.
+  ///
+  int(CEF_CALLBACK* is_background_host)(struct _cef_browser_host_t* self);
+
+  ///
+  //  Set whether the browser's audio is muted.
+  ///
+  void(CEF_CALLBACK* set_audio_muted)(struct _cef_browser_host_t* self,
+                                      int mute);
+
+  ///
+  // Returns true (1) if the browser's audio is muted.  This function can only
+  // be called on the UI thread.
+  ///
+  int(CEF_CALLBACK* is_audio_muted)(struct _cef_browser_host_t* self);
+} cef_browser_host_t;
+
+///
+// Create a new browser using the window parameters specified by |windowInfo|.
+// All values will be copied internally and the actual window (if any) will be
+// created on the UI thread. If |request_context| is NULL the global request
+// context will be used. This function can be called on any browser process
+// thread and will not block. The optional |extra_info| parameter provides an
+// opportunity to specify extra information specific to the created browser that
+// will be passed to cef_render_process_handler_t::on_browser_created() in the
+// render process.
+///
+CEF_EXPORT int cef_browser_host_create_browser(
+    const cef_window_info_t* windowInfo,
+    struct _cef_client_t* client,
+    const cef_string_t* url,
+    const struct _cef_browser_settings_t* settings,
+    struct _cef_dictionary_value_t* extra_info,
+    struct _cef_request_context_t* request_context);
+
+///
+// Create a new browser using the window parameters specified by |windowInfo|.
+// If |request_context| is NULL the global request context will be used. This
+// function can only be called on the browser process UI thread. The optional
+// |extra_info| parameter provides an opportunity to specify extra information
+// specific to the created browser that will be passed to
+// cef_render_process_handler_t::on_browser_created() in the render process.
+///
+CEF_EXPORT cef_browser_t* cef_browser_host_create_browser_sync(
+    const cef_window_info_t* windowInfo,
+    struct _cef_client_t* client,
+    const cef_string_t* url,
+    const struct _cef_browser_settings_t* settings,
+    struct _cef_dictionary_value_t* extra_info,
+    struct _cef_request_context_t* request_context);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_BROWSER_CAPI_H_

Thirdparty/libcef/include/capi/cef_browser_process_handler_capi.h

@@ -0,0 +1,113 @@
+// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool and should not edited
+// by hand. See the translator.README.txt file in the tools directory for
+// more information.
+//
+// $hash=ad0a78715daff99c1ec987800b7e5d62196e7100$
+//
+
+#ifndef CEF_INCLUDE_CAPI_CEF_BROWSER_PROCESS_HANDLER_CAPI_H_
+#define CEF_INCLUDE_CAPI_CEF_BROWSER_PROCESS_HANDLER_CAPI_H_
+#pragma once
+
+#include "include/capi/cef_base_capi.h"
+#include "include/capi/cef_client_capi.h"
+#include "include/capi/cef_command_line_capi.h"
+#include "include/capi/cef_values_capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+///
+// Structure used to implement browser process callbacks. The functions of this
+// structure will be called on the browser process main thread unless otherwise
+// indicated.
+///
+typedef struct _cef_browser_process_handler_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_ref_counted_t base;
+
+  ///
+  // Called on the browser process UI thread immediately after the CEF context
+  // has been initialized.
+  ///
+  void(CEF_CALLBACK* on_context_initialized)(
+      struct _cef_browser_process_handler_t* self);
+
+  ///
+  // Called before a child process is launched. Will be called on the browser
+  // process UI thread when launching a render process and on the browser
+  // process IO thread when launching a GPU process. Provides an opportunity to
+  // modify the child process command line. Do not keep a reference to
+  // |command_line| outside of this function.
+  ///
+  void(CEF_CALLBACK* on_before_child_process_launch)(
+      struct _cef_browser_process_handler_t* self,
+      struct _cef_command_line_t* command_line);
+
+  ///
+  // Called from any thread when work has been scheduled for the browser process
+  // main (UI) thread. This callback is used in combination with CefSettings.
+  // external_message_pump and cef_do_message_loop_work() in cases where the CEF
+  // message loop must be integrated into an existing application message loop
+  // (see additional comments and warnings on CefDoMessageLoopWork). This
+  // callback should schedule a cef_do_message_loop_work() call to happen on the
+  // main (UI) thread. |delay_ms| is the requested delay in milliseconds. If
+  // |delay_ms| is <= 0 then the call should happen reasonably soon. If
+  // |delay_ms| is > 0 then the call should be scheduled to happen after the
+  // specified delay and any currently pending scheduled call should be
+  // cancelled.
+  ///
+  void(CEF_CALLBACK* on_schedule_message_pump_work)(
+      struct _cef_browser_process_handler_t* self,
+      int64 delay_ms);
+
+  ///
+  // Return the default client for use with a newly created browser window. If
+  // null is returned the browser will be unmanaged (no callbacks will be
+  // executed for that browser) and application shutdown will be blocked until
+  // the browser window is closed manually. This function is currently only used
+  // with the chrome runtime.
+  ///
+  struct _cef_client_t*(CEF_CALLBACK* get_default_client)(
+      struct _cef_browser_process_handler_t* self);
+} cef_browser_process_handler_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // CEF_INCLUDE_CAPI_CEF_BROWSER_PROCESS_HANDLER_CAPI_H_