Enable -Winconsistent-missing-override flag.

webrtc/modules/utility/source/file_recorder_impl.h

 /*
  *  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 27 matching lines @@
 
 class CriticalSectionWrapper;
 
 class FileRecorderImpl : public FileRecorder
 {
 public:
     FileRecorderImpl(uint32_t instanceID, FileFormats fileFormat);
     virtual ~FileRecorderImpl();
 
     // FileRecorder functions.
-    virtual int32_t RegisterModuleFileCallback(FileCallback* callback);
-    virtual FileFormats RecordingFileFormat() const;
-    virtual int32_t StartRecordingAudioFile(
+    int32_t RegisterModuleFileCallback(FileCallback* callback) override;
+    FileFormats RecordingFileFormat() const override;
+    int32_t StartRecordingAudioFile(
         const char* fileName,
         const CodecInst& codecInst,
         uint32_t notificationTimeMs) override;
-    virtual int32_t StartRecordingAudioFile(
+    int32_t StartRecordingAudioFile(
         OutStream& destStream,
         const CodecInst& codecInst,
         uint32_t notificationTimeMs) override;
-    virtual int32_t StopRecording();
-    virtual bool IsRecording() const;
-    virtual int32_t codec_info(CodecInst& codecInst) const;
-    virtual int32_t RecordAudioToFile(
+    int32_t StopRecording() override;
+    bool IsRecording() const override;
+    int32_t codec_info(CodecInst& codecInst) const override;
+    int32_t RecordAudioToFile(
         const AudioFrame& frame,
-        const TickTime* playoutTS = NULL);
-    virtual int32_t StartRecordingVideoFile(
+        const TickTime* playoutTS = NULL) override;
+    int32_t StartRecordingVideoFile(
         const char* fileName,
         const CodecInst& audioCodecInst,
         const VideoCodec& videoCodecInst,
         bool videoOnly = false) override
     {
         return -1;
     }
-    virtual int32_t RecordVideoToFile(const VideoFrame& videoFrame) {
+    int32_t RecordVideoToFile(const VideoFrame& videoFrame) override {
         return -1;
     }
 
 protected:
     int32_t WriteEncodedAudioData(const int8_t* audioBuffer,
                                   size_t bufferLength);
 
     int32_t SetUpAudioEncoder();
 
     uint32_t _instanceID;
     FileFormats _fileFormat;
     MediaFile* _moduleFile;
 
 private:
     CodecInst codec_info_;
     int8_t _audioBuffer[MAX_AUDIO_BUFFER_IN_BYTES];
     AudioCoder _audioEncoder;
     Resampler _audioResampler;
 };
 }  // namespace webrtc
 #endif // WEBRTC_MODULES_UTILITY_SOURCE_FILE_RECORDER_IMPL_H_