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

webrtc/api/mediastreamtrackproxy.h

 /*
  *  Copyright 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 17 matching lines @@
   PROXY_METHOD1(void, AddSink, AudioTrackSinkInterface*)
   PROXY_METHOD1(void, RemoveSink, AudioTrackSinkInterface*)
   PROXY_METHOD1(bool, GetSignalLevel, int*)
   PROXY_METHOD0(rtc::scoped_refptr<AudioProcessorInterface>,
                 GetAudioProcessor)
   PROXY_METHOD1(bool, set_enabled, bool)
   PROXY_METHOD1(void, RegisterObserver, ObserverInterface*)
   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
 
 #endif  // WEBRTC_API_MEDIASTREAMTRACKPROXY_H_