Fix for scenario where m-line is revived after being set to port 0.

talk/app/webrtc/peerconnection.h

Index: talk/app/webrtc/peerconnection.h
diff --git a/talk/app/webrtc/peerconnection.h b/talk/app/webrtc/peerconnection.h
index 2d388ae9f913912990af0541dd8eae67008da745..6fcfaf86dfcbc534dbdc9d099c3640d5bf86d338 100644
--- a/talk/app/webrtc/peerconnection.h
+++ b/talk/app/webrtc/peerconnection.h
@@ -236,6 +236,10 @@ class PeerConnection : public PeerConnectionInterface,
       const MediaConstraintsInterface* constraints,
       cricket::MediaSessionOptions* session_options);
 
+  // Remove all local and remote tracks of type |media_type|.
+  // Called when a media type is rejected (m-line set to port 0)t.

[pthatcher, 2015/11/12 19:44:19]

What's the ")t."?  Did you mean ")."?

[Taylor Brandstetter, 2015/11/12 19:54:10]

Yeah, not sure how that happened.

+  void RemoveTracks(cricket::MediaType media_type);
+
   // Makes sure a MediaStream Track is created for each StreamParam in
   // |streams|. |media_type| is the type of the |streams| and can be either
   // audio or video.