Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/renderer/media/stream_texture_factory_impl_android.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_STREAM_TEXTURE_IMPL_ANDROID_H_
 #define CONTENT_RENDERER_MEDIA_STREAM_TEXTURE_IMPL_ANDROID_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "content/renderer/gpu/stream_texture_host_android.h"
 #include "webkit/media/android/stream_texture_factory_android.h"
 
-class GpuChannelHost;
-
 namespace WebKit {
 class WebGraphicsContext3D;
 }
 
 namespace content {
+class GpuChannelHost;
 
 // The acutal implementation of StreamTextureFactory class.
 class StreamTextureFactoryImpl
     : public webkit_media::StreamTextureFactory {
  public:
   StreamTextureFactoryImpl(WebKit::WebGraphicsContext3D* context,
                            GpuChannelHost* channel,
                            int view_id);
   virtual ~StreamTextureFactoryImpl();
 
   // webkit_media::StreamTextureFactory implementation:
   virtual webkit_media::StreamTextureProxy* CreateProxy() OVERRIDE;
 
   virtual void EstablishPeer(int stream_id, int player_id) OVERRIDE;
 
   virtual unsigned CreateStreamTexture(unsigned* texture_id) OVERRIDE;
   virtual void DestroyStreamTexture(unsigned texture_id) OVERRIDE;
 
  private:
   WebKit::WebGraphicsContext3D* context_;
   scoped_refptr<GpuChannelHost> channel_;
   int view_id_;
   DISALLOW_COPY_AND_ASSIGN(StreamTextureFactoryImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_STREAM_TEXTURE_IMPL_ANDROID_H_