Move a bunch of code in content\renderer to the content namespace.

content/renderer/media/mock_media_stream_dispatcher.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 CONTENT_RENDERER_MEDIA_MOCK_MEDIA_STREAM_DISPATCHER_H_
 #define CONTENT_RENDERER_MEDIA_MOCK_MEDIA_STREAM_DISPATCHER_H_
 
 #include <string>
 
 #include "content/renderer/media/media_stream_dispatcher.h"
 #include "googleurl/src/gurl.h"
 
+namespace content {
+
 // This class is a mock implementation of MediaStreamDispatcher.
 class MockMediaStreamDispatcher : public MediaStreamDispatcher {
  public:
   MockMediaStreamDispatcher();
   virtual ~MockMediaStreamDispatcher();
 
   virtual void GenerateStream(
       int request_id,
       const base::WeakPtr<MediaStreamDispatcherEventHandler>&,
       const media_stream::StreamOptions& components,
@@ skipping 18 matching lines @@
   base::WeakPtr<MediaStreamDispatcherEventHandler> event_handler_;
   int stop_stream_counter_;
 
   std::string stream_label_;
   media_stream::StreamDeviceInfoArray audio_array_;
   media_stream::StreamDeviceInfoArray video_array_;
 
   DISALLOW_COPY_AND_ASSIGN(MockMediaStreamDispatcher);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_RENDERER_MEDIA_MOCK_MEDIA_STREAM_DISPATCHER_H_