Remove the unused video stuff in FilePlayer and FileRecorder

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.
  */
 
-// This file contains a class that can write audio and/or video to file in
+// This file contains a class that can write audio to file in
 // multiple file formats. The unencoded input data is written to file in the
 // encoded format specified.
 
 #ifndef WEBRTC_MODULES_UTILITY_SOURCE_FILE_RECORDER_IMPL_H_
 #define WEBRTC_MODULES_UTILITY_SOURCE_FILE_RECORDER_IMPL_H_
 
 #include <list>
 
 #include "webrtc/base/platform_thread.h"
 #include "webrtc/common_audio/resampler/include/resampler.h"
@@ skipping 29 matching lines @@
         const CodecInst& codecInst,
         uint32_t notificationTimeMs) override;
     int32_t StartRecordingAudioFile(
         OutStream& destStream,
         const CodecInst& codecInst,
         uint32_t notificationTimeMs) override;
     int32_t StopRecording() override;
     bool IsRecording() const override;
     int32_t codec_info(CodecInst& codecInst) const override;
     int32_t RecordAudioToFile(const AudioFrame& frame) override;
-    int32_t StartRecordingVideoFile(
-        const char* fileName,
-        const CodecInst& audioCodecInst,
-        const VideoCodec& videoCodecInst,
-        bool videoOnly = false) override
-    {
-        return -1;
-    }
-    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_