Style fixes in rtcp_packet/

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

 /*
  *  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.
  */
 
@@ skipping 100 matching lines @@
   voip_metric_block_.emplace(voip_metric);
 }
 
 void ExtendedReports::SetTargetBitrate(const TargetBitrate& bitrate) {
   if (target_bitrate_)
     LOG(LS_WARNING) << "TargetBitrate already set, overwriting.";
 
   target_bitrate_ = rtc::Optional<TargetBitrate>(bitrate);
 }
 
+size_t ExtendedReports::BlockLength() const {
+  return kHeaderLength + kXrBaseLength + RrtrLength() + DlrrLength() +
+         VoipMetricLength() + TargetBitrateLength();
+}
+
 bool ExtendedReports::Create(uint8_t* packet,
                              size_t* index,
                              size_t max_length,
                              RtcpPacket::PacketReadyCallback* callback) const {
   while (*index + BlockLength() > max_length) {
     if (!OnBufferFull(packet, index, callback))
       return false;
   }
   size_t index_end = *index + BlockLength();
   const uint8_t kReserved = 0;
@@ skipping 67 matching lines @@
 }
 
 void ExtendedReports::ParseTargetBitrateBlock(const uint8_t* block,
                                               uint16_t block_length) {
   target_bitrate_ = rtc::Optional<TargetBitrate>(TargetBitrate());
   if (!target_bitrate_->Parse(block, block_length))
     target_bitrate_ = rtc::Optional<TargetBitrate>();
 }
 }  // namespace rtcp
 }  // namespace webrtc