Unify rtcp packet setters

webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.cc

 /*
  *  Copyright (c) 2015 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 56 matching lines @@
                index);
   ByteWriter<uint32_t>::WriteBigEndian(packet + *index, sender_ssrc_);
   *index += kRrBaseLength;
   for (const ReportBlock& block : report_blocks_) {
     block.Create(packet + *index);
     *index += ReportBlock::kLength;
   }
   return true;
 }
 
-bool ReceiverReport::WithReportBlock(const ReportBlock& block) {
+bool ReceiverReport::AddReportBlock(const ReportBlock& block) {
   if (report_blocks_.size() >= kMaxNumberOfReportBlocks) {
     LOG(LS_WARNING) << "Max report blocks reached.";
     return false;
   }
   report_blocks_.push_back(block);
   return true;
 }
 
 }  // namespace rtcp
 }  // namespace webrtc