Remove NullReceiveStatistics

webrtc/modules/rtp_rtcp/source/receive_statistics_impl.cc

 /*
  *  Copyright (c) 2013 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 507 matching lines @@
       LOG(LS_WARNING) << "Cumulative lost is oversized.";
       result.pop_back();
       continue;
     }
     block.SetExtHighestSeqNum(stats.extended_max_sequence_number);
     block.SetJitter(stats.jitter);
   }
   return result;
 }
 
-void NullReceiveStatistics::IncomingPacket(const RTPHeader& rtp_header,
-                                           size_t packet_length,
-                                           bool retransmitted) {}
-
-void NullReceiveStatistics::FecPacketReceived(const RTPHeader& header,
-                                              size_t packet_length) {}
-
-StatisticianMap NullReceiveStatistics::GetActiveStatisticians() const {
-  return StatisticianMap();
-}
-
-StreamStatistician* NullReceiveStatistics::GetStatistician(
-    uint32_t ssrc) const {
-  return NULL;
-}
-
-void NullReceiveStatistics::SetMaxReorderingThreshold(
-    int max_reordering_threshold) {}
-
-void NullReceiveStatistics::RegisterRtcpStatisticsCallback(
-    RtcpStatisticsCallback* callback) {}
-
-void NullReceiveStatistics::RegisterRtpStatisticsCallback(
-    StreamDataCountersCallback* callback) {}
-
 }  // namespace webrtc