Replace PluginMessageLoopProxy with PluginThreadTaskRunner.

remoting/base/plugin_message_loop_proxy.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 REMOTING_BASE_PLUGIN_MESSAGE_LOOP_H_
-#define REMOTING_BASE_PLUGIN_MESSAGE_LOOP_H_
-
-#include "base/callback_forward.h"
-#include "base/compiler_specific.h"
-#include "base/message_loop_proxy.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/platform_thread.h"
-
-namespace remoting {
-
-// MessageLoopProxy for plugin main threads.
-class PluginMessageLoopProxy : public base::MessageLoopProxy {
- public:
-  class Delegate {
-   public:
-    Delegate() { }
-    virtual ~Delegate() { }
-
-    virtual bool RunOnPluginThread(
-        base::TimeDelta delay, void(function)(void*), void* data) = 0;
-  };
-
-  // Caller keeps ownership of delegate.
-  PluginMessageLoopProxy(Delegate* delegate);
-
-  void Detach();
-
-  // base::MessageLoopProxy implementation.
-  virtual bool PostDelayedTask(
-      const tracked_objects::Location& from_here,
-      const base::Closure& task,
-      base::TimeDelta delay) OVERRIDE;
-  virtual bool PostNonNestableDelayedTask(
-      const tracked_objects::Location& from_here,
-      const base::Closure& task,
-      base::TimeDelta delay) OVERRIDE;
-
-  virtual bool RunsTasksOnCurrentThread() const OVERRIDE;
-
- protected:
-  virtual ~PluginMessageLoopProxy();
-
- private:
-  static void TaskSpringboard(void* data);
-
-  void RunClosureIf(const base::Closure& task);
-
-  base::PlatformThreadId plugin_thread_id_;
-
-  // |lock_| must be acquired when accessing |delegate_|.
-  base::Lock lock_;
-  Delegate* delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(PluginMessageLoopProxy);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_BASE_PLUGIN_MESSAGE_LOOP_H_