Delete support for sending RTCP RPSI and SLI messages.

webrtc/modules/rtp_rtcp/include/rtp_rtcp.h

 /*
  *  Copyright (c) 2012 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 295 matching lines @@
   // process function.
   // Returns -1 on failure else 0.
   virtual int32_t SendRTCP(RTCPPacketType rtcp_packet_type) = 0;
 
   // Forces a send of a RTCP packet with more than one packet type.
   // periodic SR and RR are triggered via the process function
   // Returns -1 on failure else 0.
   virtual int32_t SendCompoundRTCP(
       const std::set<RTCPPacketType>& rtcp_packet_types) = 0;
 
-  // Notifies the sender about good state of the RTP receiver.
-  virtual int32_t SendRTCPReferencePictureSelection(uint64_t picture_id) = 0;
-
-  // Send a RTCP Slice Loss Indication (SLI).
-  //   |picture_id| - 6 least significant bits of picture_id.
-  virtual int32_t SendRTCPSliceLossIndication(uint8_t picture_id) = 0;
-
   // Returns statistics of the amount of data sent.
   // Returns -1 on failure else 0.
   virtual int32_t DataCountersRTP(size_t* bytes_sent,
                                   uint32_t* packets_sent) const = 0;
 
   // Returns send statistics for the RTP and RTX stream.
   virtual void GetSendStreamDataCounters(
       StreamDataCounters* rtp_counters,
       StreamDataCounters* rtx_counters) const = 0;
 
@@ skipping 140 matching lines @@
   virtual int32_t SetKeyFrameRequestMethod(KeyFrameRequestMethod method) = 0;
 
   // Sends a request for a keyframe.
   // Returns -1 on failure else 0.
   virtual int32_t RequestKeyFrame() = 0;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_RTP_RTCP_INCLUDE_RTP_RTCP_H_