Delete support for receiving RTCP RPSI and SLI messages.

webrtc/modules/rtp_rtcp/source/rtcp_packet/rpsi.h

-/*
- *  Copyright (c) 2016 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.
- */
-
-#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_
-#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_
-
-#include "webrtc/base/basictypes.h"
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h"
-
-namespace webrtc {
-namespace rtcp {
-class CommonHeader;
-
-// Reference picture selection indication (RPSI) (RFC 4585).
-// Assumes native bit string stores PictureId (VP8, VP9).
-class Rpsi : public Psfb {
- public:
-  static constexpr uint8_t kFeedbackMessageType = 3;
-  Rpsi();
-  ~Rpsi() override {}
-
-  // Parse assumes header is already parsed and validated.
-  bool Parse(const CommonHeader& packet);
-
-  void SetPayloadType(uint8_t payload);
-  void SetPictureId(uint64_t picture_id);
-
-  uint8_t payload_type() const { return payload_type_; }
-  uint64_t picture_id() const { return picture_id_; }
-
- protected:
-  bool Create(uint8_t* packet,
-              size_t* index,
-              size_t max_length,
-              RtcpPacket::PacketReadyCallback* callback) const override;
-
- private:
-  size_t BlockLength() const override { return block_length_; }
-  static size_t CalculateBlockLength(uint8_t bitstring_size_bytes);
-
-  uint8_t payload_type_;
-  uint64_t picture_id_;
-  size_t block_length_;
-};
-}  // namespace rtcp
-}  // namespace webrtc
-#endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_RPSI_H_