Move RTP/RTCP demuxing logic from BaseChannel to RtpTransport.

webrtc/pc/rtcpmuxfilter.h

 /*
  *  Copyright 2004 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 27 matching lines @@
 
   // Specifies whether the offer indicates the use of RTCP mux.
   bool SetOffer(bool offer_enable, ContentSource src);
 
   // Specifies whether the provisional answer indicates the use of RTCP mux.
   bool SetProvisionalAnswer(bool answer_enable, ContentSource src);
 
   // Specifies whether the answer indicates the use of RTCP mux.
   bool SetAnswer(bool answer_enable, ContentSource src);
 
-  // Determines whether the specified packet is RTCP.
-  bool DemuxRtcp(const char* data, int len);
-
  private:
   bool ExpectOffer(bool offer_enable, ContentSource source);
   bool ExpectAnswer(ContentSource source);
   enum State {
     // RTCP mux filter unused.
     ST_INIT,
     // Offer with RTCP mux enabled received.
     // RTCP mux filter is not active.
     ST_RECEIVEDOFFER,
     // Offer with RTCP mux enabled sent.
@@ skipping 11 matching lines @@
     // the filter.
     ST_ACTIVE
   };
   State state_;
   bool offer_enable_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_PC_RTCPMUXFILTER_H_