Move MessageLoop to base namespace.

remoting/base/plugin_thread_task_runner.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_THREAD_TASK_RUNNER_H_
 #define REMOTING_BASE_PLUGIN_THREAD_TASK_RUNNER_H_
 
 #include <set>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/pending_task.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/platform_thread.h"
 #include "base/time.h"
 
-class MessageLoop;
-
 namespace remoting {
 
 // SingleThreadTaskRunner for plugin main threads.
 class PluginThreadTaskRunner : public base::SingleThreadTaskRunner {
  public:
   class Delegate {
    public:
     virtual ~Delegate();
 
     virtual bool RunOnPluginThread(
@@ skipping 90 matching lines @@
 
   // True if the shutdown task loop was been stopped.
   bool stopped_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginThreadTaskRunner);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_PLUGIN_THREAD_TASK_RUNNER_H_