Style fixes in rtcp_packet/

webrtc/modules/rtp_rtcp/source/rtcp_packet/pli.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 31 matching lines @@
 
   if (packet.payload_size_bytes() < kCommonFeedbackLength) {
     LOG(LS_WARNING) << "Packet is too small to be a valid PLI packet";
     return false;
   }
 
   ParseCommonFeedback(packet.payload());
   return true;
 }
 
+size_t Pli::BlockLength() const {
+  return kHeaderLength + kCommonFeedbackLength;
+}
+
 bool Pli::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;
   }
 
   CreateHeader(kFeedbackMessageType, kPacketType, HeaderLength(), packet,
                index);
   CreateCommonFeedback(packet + *index);
   *index += kCommonFeedbackLength;
   return true;
 }
 
 }  // namespace rtcp
 }  // namespace webrtc