Style fixes in rtcp_packet/

webrtc/modules/rtp_rtcp/source/rtcp_packet/extended_jitter_report.h

 /*
  *  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.
  */
 
 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_EXTENDED_JITTER_REPORT_H_
 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_EXTENDED_JITTER_REPORT_H_
 
 #include <vector>
 
 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h"
 
 namespace webrtc {
 namespace rtcp {
 class CommonHeader;
 
 class ExtendedJitterReport : public RtcpPacket {
  public:
   static constexpr uint8_t kPacketType = 195;
   static constexpr size_t kMaxNumberOfJitterValues = 0x1f;
 
-  ExtendedJitterReport() {}
-  ~ExtendedJitterReport() override {}
+  ExtendedJitterReport();
+  ~ExtendedJitterReport() override;
 
   // Parse assumes header is already parsed and validated.
   bool Parse(const CommonHeader& packet);
 
   bool SetJitterValues(std::vector<uint32_t> jitter_values);
 
   const std::vector<uint32_t>& jitter_values() {
     return inter_arrival_jitters_;
   }
 
- protected:
+  size_t BlockLength() const override;
+
   bool Create(uint8_t* packet,
               size_t* index,
               size_t max_length,
               RtcpPacket::PacketReadyCallback* callback) const override;
 
  private:
   static constexpr size_t kJitterSizeBytes = 4;
 
-  size_t BlockLength() const override {
-    return kHeaderLength + kJitterSizeBytes * inter_arrival_jitters_.size();
-  }
-
   std::vector<uint32_t> inter_arrival_jitters_;
 };
 
 }  // namespace rtcp
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_EXTENDED_JITTER_REPORT_H_