Enable -Winconsistent-missing-override flag.

webrtc/modules/audio_coding/neteq/neteq_impl_unittest.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 765 matching lines @@
   uint8_t payload[kPayloadLengthBytes]= {0};
   int16_t dummy_output[kPayloadLengthSamples * kChannels] = {0};
   WebRtcRTPHeader rtp_header;
   rtp_header.header.payloadType = kPayloadType;
   rtp_header.header.sequenceNumber = 0x1234;
   rtp_header.header.timestamp = 0x12345678;
   rtp_header.header.ssrc = 0x87654321;
 
   class MockAudioDecoder : public AudioDecoder {
    public:
-    void Reset() override {}
+    // TODO(nisse): Valid overrides commented out, because the gmock
+    // methods don't use any override declarations, and we want to avoid
+    // warnings from -Winconsistent-missing-override. See
+    // http://crbug.com/428099.
+    void Reset() /* override */ {}
     MOCK_CONST_METHOD2(PacketDuration, int(const uint8_t*, size_t));
     MOCK_METHOD5(DecodeInternal, int(const uint8_t*, size_t, int, int16_t*,
                                      SpeechType*));
-    size_t Channels() const override { return kChannels; }
+    size_t Channels() const /* override */ { return kChannels; }
   } decoder_;
 
   const uint8_t kFirstPayloadValue = 1;
   const uint8_t kSecondPayloadValue = 2;
 
   EXPECT_CALL(decoder_, PacketDuration(Pointee(kFirstPayloadValue),
                                        kPayloadLengthBytes))
     .Times(AtLeast(1))
     .WillRepeatedly(Return(kNetEqMaxFrameSize + 1));
 
@@ skipping 378 matching lines @@
   UseNoMocks();
   CreateInstance();
   ASSERT_TRUE(tick_timer_);
   EXPECT_EQ(0u, tick_timer_->ticks());
   AudioFrame output;
   EXPECT_EQ(NetEq::kOK, neteq_->GetAudio(&output));
   EXPECT_EQ(1u, tick_timer_->ticks());
 }
 
 }// namespace webrtc