RTCPeerConnection.addTrack and removeTrack added (behind flag)

third_party/WebKit/Source/modules/peerconnection/RTCPeerConnection.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 138 matching lines @@
 
   void removeStream(MediaStream*, ExceptionState&);
 
   ScriptPromise getStats(ScriptState*,
                          RTCStatsCallback* success_callback,
                          MediaStreamTrack* selector = nullptr);
   ScriptPromise getStats(ScriptState*);
 
   HeapVector<Member<RTCRtpSender>> getSenders();
   HeapVector<Member<RTCRtpReceiver>> getReceivers();
+  RTCRtpSender* addTrack(MediaStreamTrack*, MediaStreamVector, ExceptionState&);
+  void removeTrack(RTCRtpSender*, ExceptionState&);
 
   RTCDataChannel* createDataChannel(ScriptState*,
                                     String label,
                                     const RTCDataChannelInit&,
                                     ExceptionState&);
 
   RTCDTMFSender* createDTMFSender(MediaStreamTrack*, ExceptionState&);
 
   void close(ExceptionState&);
 
@@ skipping 120 matching lines @@
 
   bool stopped_;
   bool closed_;
 
   bool has_data_channels_;  // For RAPPOR metrics
 };
 
 }  // namespace blink
 
 #endif  // RTCPeerConnection_h