Move MessageLoop to base namespace.

remoting/base/auto_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_AUTO_THREAD_TASK_RUNNER_H_
 #define REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/single_thread_task_runner.h"
 
-class MessageLoop;
-
 namespace remoting {
 
 // A wrapper around |SingleThreadTaskRunner| that provides automatic lifetime
 // management, by posting a caller-supplied task to the underlying task runner
 // when no more references remain.
 class AutoThreadTaskRunner : public base::SingleThreadTaskRunner {
  public:
   // Constructs an instance of |AutoThreadTaskRunner| wrapping |task_runner|.
   // |stop_task| is posted to |task_runner| when the last reference to
   // the AutoThreadTaskRunner is dropped.
@@ skipping 19 matching lines @@
 
   // The wrapped task runner.
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(AutoThreadTaskRunner);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_AUTO_THREAD_TASK_RUNNER_H_