Move MessageLoop to base namespace.

media/tools/player_x11/x11_video_renderer.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 MEDIA_TOOLS_PLAYER_X11_X11_VIDEO_RENDERER_H_
 #define MEDIA_TOOLS_PLAYER_X11_X11_VIDEO_RENDERER_H_
 
 #include <X11/Xlib.h>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
-class MessageLoop;
-
 namespace media {
 class VideoFrame;
 }
 
 class X11VideoRenderer : public base::RefCountedThreadSafe<X11VideoRenderer> {
  public:
   X11VideoRenderer(Display* display, Window window);
 
   void Paint(media::VideoFrame* video_frame);
 
@@ skipping 13 matching lines @@
   // Picture represents the paint target. This is a picture located
   // in the server.
   unsigned long picture_;
 
   bool use_render_;
 
   DISALLOW_COPY_AND_ASSIGN(X11VideoRenderer);
 };
 
 #endif  // MEDIA_TOOLS_PLAYER_X11_X11_VIDEO_RENDERER_H_