Deliver video frames on libjingle worker thread to WebRtcVideoCapturerAdapter.

content/renderer/media/media_stream_dependency_factory.h

Index: content/renderer/media/media_stream_dependency_factory.h
diff --git a/content/renderer/media/media_stream_dependency_factory.h b/content/renderer/media/media_stream_dependency_factory.h
index 4c42ff4f84a6bbe39abff5b3b4e1d00c4b89004a..cd2893496ac334e8aaed46f2ed23174e6203e438 100644
--- a/content/renderer/media/media_stream_dependency_factory.h
+++ b/content/renderer/media/media_stream_dependency_factory.h
@@ -131,6 +131,10 @@ class CONTENT_EXPORT MediaStreamDependencyFactory
       const blink::WebMediaStreamTrack& webkit_track,
       bool is_local_track);
 
+  scoped_refptr<base::MessageLoopProxy> worker_thread_proxy() {

[tommi (sloooow) - chröme, 2014/05/12 14:20:41]

Can we call this GetWebRtcWorkerThread() and move the implementation into the cc
file?

Also, I'd like to have a thread check to protect access to the
chrome_worker_thread_ member variable.

[perkj_chrome, 2014/05/12 15:39:51]

Done.

+    return chrome_worker_thread_.message_loop_proxy();
+  }
+
  protected:
   // Asks the PeerConnection factory to create a Local Audio Source.
   virtual scoped_refptr<webrtc::AudioSourceInterface>