[rtp_rtcp] tmmbr helper simplified by moving set_to_send member out

webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.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 182 matching lines @@
   void SetREMBStatus(bool enable) override;
 
   void SetREMBData(uint32_t bitrate,
                    const std::vector<uint32_t>& ssrcs) override;
 
   // (TMMBR) Temporary Max Media Bit Rate.
   bool TMMBR() const override;
 
   void SetTMMBRStatus(bool enable) override;
 
-  int32_t SetTMMBN(const TMMBRSet* bounding_set);
+  void SetTMMBN(const TMMBRSet* bounding_set);
 
   uint16_t MaxPayloadLength() const override;
 
   uint16_t MaxDataPayloadLength() const override;
 
   int32_t SetMaxTransferUnit(uint16_t size) override;
 
   int32_t SetTransportOverhead(bool tcp,
                                bool ipv6,
                                uint8_t authentication_overhead = 0) override;
@@ skipping 168 matching lines @@
   PacketLossStats receive_loss_stats_;
 
   // The processed RTT from RtcpRttStats.
   rtc::scoped_ptr<CriticalSectionWrapper> critical_section_rtt_;
   int64_t rtt_ms_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_RTCP_IMPL_H_