Move a bunch of html5 renderer code to content.

content/renderer/audio_message_filter.h

 // Copyright (c) 2010 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.
 //
 // MessageFilter that handles audio messages and delegates them to audio
 // renderers. Created on render thread, AudioMessageFilter is operated on
 // IO thread (main thread of render process), it intercepts audio messages
 // and process them on IO thread since these messages are time critical.
 
-#ifndef CHROME_RENDERER_AUDIO_MESSAGE_FILTER_H_
-#define CHROME_RENDERER_AUDIO_MESSAGE_FILTER_H_
+#ifndef CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_
+#define CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_
 #pragma once
 
 #include "base/gtest_prod_util.h"
 #include "base/id_map.h"
 #include "base/shared_memory.h"
 #include "base/sync_socket.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "media/audio/audio_buffers_state.h"
 
 struct ViewMsg_AudioStreamState_Params;
@@ skipping 89 matching lines @@
 
   IPC::Channel* channel_;
 
   int32 route_id_;
 
   MessageLoop* message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioMessageFilter);
 };
 
-#endif  // CHROME_RENDERER_AUDIO_MESSAGE_FILTER_H_
+#endif  // CONTENT_RENDERER_AUDIO_MESSAGE_FILTER_H_