Style fixes in rtcp_packet/

webrtc/modules/rtp_rtcp/source/rtcp_packet/sdes.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 137 matching lines @@
     return false;
   }
   Chunk chunk;
   chunk.ssrc = ssrc;
   chunk.cname = std::move(cname);
   chunks_.push_back(chunk);
   block_length_ += ChunkSize(chunk);
   return true;
 }
 
+size_t Sdes::BlockLength() const {
+  return block_length_;
+}
+
 bool Sdes::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;
   }
   const size_t index_end = *index + BlockLength();
   CreateHeader(chunks_.size(), kPacketType, HeaderLength(), packet, index);
@@ skipping 13 matching lines @@
     const int kPadding = 0;
     memset(packet + *index, kPadding, padding_size);
     *index += padding_size;
   }
 
   RTC_CHECK_EQ(*index, index_end);
   return true;
 }
 }  // namespace rtcp
 }  // namespace webrtc