Combine audio decoding and video decoding onto a single thread.

content/renderer/render_view_impl.cc

 // 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.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 2493 matching lines @@
         RenderThreadImpl::current()->compositor_thread() ?
         RenderThreadImpl::current()->compositor_thread()->GetWebThread()
             ->message_loop()->message_loop_proxy() :
         base::MessageLoopProxy::current();
     GpuChannelHost* gpu_channel_host =
         RenderThreadImpl::current()->EstablishGpuChannelSync(
             content::CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
     collection->GetVideoDecoders()->push_back(new media::GpuVideoDecoder(
         base::Bind(&media::MessageLoopFactory::GetMessageLoop,
                    base::Unretained(message_loop_factory),
-                   media::MessageLoopFactory::kVideoDecoder),
+                   media::MessageLoopFactory::kDecoder),
         factories_loop,
         new RendererGpuVideoDecoderFactories(
             gpu_channel_host, factories_loop, context3d)));
   }
 
   WebMediaPlayer* media_player =
       content::GetContentClient()->renderer()->OverrideCreateWebMediaPlayer(
           this, frame, client, AsWeakPtr(), collection, audio_source_provider,
           audio_source_provider, message_loop_factory, media_stream_impl_,
           render_media_log);
@@ skipping 3594 matching lines @@
 
   updating_frame_tree_ = true;
   active_frame_id_map_.clear();
 
   target_process_id_ = process_id;
   target_routing_id_ = route_id;
   CreateFrameTree(webview()->mainFrame(), frames);
 
   updating_frame_tree_ = false;
 }