Fix Chromium clang plugin warnings

webrtc/modules/audio_coding/neteq/tools/packet.cc

 /*
  *  Copyright (c) 2014 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 59 matching lines @@
       payload_(NULL),
       packet_length_bytes_(allocated_bytes),
       payload_length_bytes_(0),
       virtual_packet_length_bytes_(virtual_packet_length_bytes),
       virtual_payload_length_bytes_(0),
       time_ms_(time_ms) {
   std::unique_ptr<RtpHeaderParser> parser(RtpHeaderParser::Create());
   valid_header_ = ParseHeader(*parser);
 }
 
+Packet::~Packet() = default;
+
 bool Packet::ExtractRedHeaders(std::list<RTPHeader*>* headers) const {
   //
   //  0                   1                    2                   3
   //  0 1 2 3 4 5 6 7 8 9 0 1 2 3  4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   // |1|   block PT  |  timestamp offset         |   block length    |
   // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   // |1|    ...                                                      |
   // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   // |0|   block PT  |
@@ skipping 72 matching lines @@
   destination->payload_type_frequency = header_.payload_type_frequency;
   memcpy(&destination->arrOfCSRCs,
          &header_.arrOfCSRCs,
          sizeof(header_.arrOfCSRCs));
   memcpy(
       &destination->extension, &header_.extension, sizeof(header_.extension));
 }
 
 }  // namespace test
 }  // namespace webrtc