Extended proxy abstraction, to call certain methods to the worker thread.

webrtc/api/mediastreamtrackproxy.h

Index: webrtc/api/mediastreamtrackproxy.h
diff --git a/webrtc/api/mediastreamtrackproxy.h b/webrtc/api/mediastreamtrackproxy.h
index f68773223b905b4be9c503bb93c736c9bbaeca4d..6ca6dbbe80f8f8d8cec1c19d9932439816ce03a5 100644
--- a/webrtc/api/mediastreamtrackproxy.h
+++ b/webrtc/api/mediastreamtrackproxy.h
@@ -35,22 +35,24 @@ BEGIN_PROXY_MAP(AudioTrack)
   PROXY_METHOD1(void, UnregisterObserver, ObserverInterface*)
 END_PROXY()
 
-BEGIN_PROXY_MAP(VideoTrack)
+BEGIN_WORKER_PROXY_MAP(VideoTrack)
   PROXY_CONSTMETHOD0(std::string, kind)
   PROXY_CONSTMETHOD0(std::string, id)
   PROXY_CONSTMETHOD0(TrackState, state)
   PROXY_CONSTMETHOD0(bool, enabled)
   PROXY_METHOD1(bool, set_enabled, bool)
-  PROXY_METHOD2(void,
+  PROXY_WORKER_METHOD2(void,
                 AddOrUpdateSink,
                 rtc::VideoSinkInterface<cricket::VideoFrame>*,
                 const rtc::VideoSinkWants&)
-  PROXY_METHOD1(void, RemoveSink, rtc::VideoSinkInterface<cricket::VideoFrame>*)
+  PROXY_WORKER_METHOD1(void,
+                       RemoveSink,
+                       rtc::VideoSinkInterface<cricket::VideoFrame>*)
   PROXY_CONSTMETHOD0(VideoTrackSourceInterface*, GetSource)
 
   PROXY_METHOD1(void, RegisterObserver, ObserverInterface*)
   PROXY_METHOD1(void, UnregisterObserver, ObserverInterface*)
-END_PROXY()
+END_WORKER_PROXY()
 
 }  // namespace webrtc