Implement client-side video stream support for WebRTC-based protocol.

remoting/protocol/webrtc_transport.h

Index: remoting/protocol/webrtc_transport.h
diff --git a/remoting/protocol/webrtc_transport.h b/remoting/protocol/webrtc_transport.h
index a54be6ef811c1eecf0ad24c402bfc68f51c36060..8a7f43bdadbdd26d34ff50ce7b28f4ba16037cfc 100644
--- a/remoting/protocol/webrtc_transport.h
+++ b/remoting/protocol/webrtc_transport.h
@@ -45,6 +45,12 @@ class WebrtcTransport : public Transport,
 
     // Called when there is an error connecting the session.
     virtual void OnWebrtcTransportError(ErrorCode error) = 0;
+
+    // Called when an incoming media stream is added or removed.
+    virtual void OnWebrtcTransportMediaStreamAdded(
+        scoped_refptr<webrtc::MediaStreamInterface> stream) = 0;
+    virtual void OnWebrtcTransportMediaStreamRemoved(
+        scoped_refptr<webrtc::MediaStreamInterface> stream) = 0;
   };
 
   WebrtcTransport(rtc::Thread* worker_thread,
@@ -125,9 +131,6 @@ class WebrtcTransport : public Transport,
 
   ScopedVector<webrtc::IceCandidateInterface> pending_incoming_candidates_;
 
-  std::list<rtc::scoped_refptr<webrtc::MediaStreamInterface>>
-      unclaimed_streams_;
-
   WebrtcDataStreamAdapter outgoing_data_stream_adapter_;
   WebrtcDataStreamAdapter incoming_data_stream_adapter_;