Update //base to chromium 9659b08ea5a34f889dc4166217f438095ddc10d2

base/message_loop/message_loop_proxy_impl.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
-#define BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
-
-#include "base/base_export.h"
-#include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop_proxy.h"
-#include "base/pending_task.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/platform_thread.h"
-
-namespace base {
-namespace internal {
-
-class IncomingTaskQueue;
-
-// A stock implementation of MessageLoopProxy that is created and managed by a
-// MessageLoop. For now a MessageLoopProxyImpl can only be created as part of a
-// MessageLoop.
-class BASE_EXPORT MessageLoopProxyImpl : public MessageLoopProxy {
- public:
-  explicit MessageLoopProxyImpl(
-      scoped_refptr<IncomingTaskQueue> incoming_queue);
-
-  // Initialize this message loop proxy on the current thread.
-  void BindToCurrentThread();
-
-  // MessageLoopProxy implementation
-  bool PostDelayedTask(const tracked_objects::Location& from_here,
-                       const base::Closure& task,
-                       base::TimeDelta delay) override;
-  bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
-                                  const base::Closure& task,
-                                  base::TimeDelta delay) override;
-  bool RunsTasksOnCurrentThread() const override;
-
- private:
-  friend class RefCountedThreadSafe<MessageLoopProxyImpl>;
-  ~MessageLoopProxyImpl() override;
-
-  // THe incoming queue receiving all posted tasks.
-  scoped_refptr<IncomingTaskQueue> incoming_queue_;
-
-  // ID of the thread |this| was created on.  Could be accessed on multiple
-  // threads, protected by |valid_thread_id_lock_|.
-  PlatformThreadId valid_thread_id_;
-  mutable Lock valid_thread_id_lock_;
-
-  DISALLOW_COPY_AND_ASSIGN(MessageLoopProxyImpl);
-};
-
-}  // namespace internal
-}  // namespace base
-
-#endif  // BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_