Fix Chromium clang plugin warnings

webrtc/modules/audio_coding/neteq/neteq.gypi

 # 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.
 
 {
   'variables': {
@@ skipping 228 matching lines @@
             'tools/neteq_packet_source_input.cc',
             'tools/neteq_packet_source_input.h',
             'tools/neteq_replacement_input.cc',
             'tools/neteq_replacement_input.h',
             'tools/neteq_test.cc',
             'tools/neteq_test.h',
             'tools/output_audio_file.h',
             'tools/output_wav_file.h',
             'tools/packet.cc',
             'tools/packet.h',
+            'tools/packet_source.cc',
             'tools/packet_source.h',
             'tools/resample_input_audio_file.cc',
             'tools/resample_input_audio_file.h',
             'tools/rtp_file_source.cc',
             'tools/rtp_file_source.h',
             'tools/rtp_generator.cc',
             'tools/rtp_generator.h',
           ],
         }, # neteq_unittest_tools
       ], # targets
     }], # include_tests
   ], # conditions
 }