Fixed memleak when two voip blocks present in single rtcp packet.

webrtc/modules/rtp_rtcp/source/rtcp_receiver_help.cc

 /*
  *  Copyright (c) 2012 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 24 matching lines @@
       ntp_secs(0),
       ntp_frac(0),
       rtp_timestamp(0),
       xr_originator_ssrc(0),
       xr_dlrr_item(false),
       VoIPMetric(nullptr) {}
 
 RTCPPacketInformation::~RTCPPacketInformation()
 {
     delete [] applicationData;
-    delete VoIPMetric;
 }
 
 void
 RTCPPacketInformation::AddVoIPMetric(const RTCPVoIPMetric* metric)
 {
-    VoIPMetric = new RTCPVoIPMetric();
-    memcpy(VoIPMetric, metric, sizeof(RTCPVoIPMetric));
+    VoIPMetric.reset(new RTCPVoIPMetric());
+    memcpy(VoIPMetric.get(), metric, sizeof(RTCPVoIPMetric));
 }
 
 void RTCPPacketInformation::AddApplicationData(const uint8_t* data,
                                                const uint16_t size) {
     uint8_t* oldData = applicationData;
     uint16_t oldLength = applicationLength;
 
     // Don't copy more than kRtcpAppCode_DATA_SIZE bytes.
     uint16_t copySize = size;
     if (size > kRtcpAppCode_DATA_SIZE) {
@@ skipping 122 matching lines @@
                          TmmbrSet.Ssrc(sourceIdx));
   return 0;
 }
 
 void RTCPReceiveInformation::VerifyAndAllocateBoundingSet(
     const uint32_t minimumSize) {
   TmmbnBoundingSet.VerifyAndAllocateSet(minimumSize);
 }
 }  // namespace RTCPHelp
 }  // namespace webrtc