Move direct use of VideoCapturer::VideoAdapter to VideoSinkWants.

webrtc/media/base/videobroadcaster.h

Index: webrtc/media/base/videobroadcaster.h
diff --git a/webrtc/media/base/videobroadcaster.h b/webrtc/media/base/videobroadcaster.h
index 63c22730c7f1df7d7316a682dcf2b22990e8eb2d..89c9f3dd49cbfbab58d11c6078c34606306d7ecb 100644
--- a/webrtc/media/base/videobroadcaster.h
+++ b/webrtc/media/base/videobroadcaster.h
@@ -47,11 +47,11 @@ class VideoBroadcaster : public VideoSourceInterface<cricket::VideoFrame>,
     VideoSinkWants wants;
   };
   SinkPair* FindSinkPair(const VideoSinkInterface<cricket::VideoFrame>* sink);
+  void UpdateWants();
 
   ThreadChecker thread_checker_;
 
   VideoSinkWants current_wants_;
-
   std::vector<SinkPair> sinks_;
 };