FileRecorder + FilePlayer: Let Create functions return unique_ptr

webrtc/modules/audio_mixer/audio_mixer.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.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_MIXER_AUDIO_MIXER_H_
 #define WEBRTC_MODULES_AUDIO_MIXER_AUDIO_MIXER_H_
 
+#include <memory>
+
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/common_audio/resampler/include/push_resampler.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/audio_mixer/new_audio_conference_mixer.h"
 #include "webrtc/modules/audio_mixer/audio_mixer_defines.h"
 #include "webrtc/modules/utility/include/file_recorder.h"
 #include "webrtc/voice_engine/level_indicator.h"
 #include "webrtc/voice_engine/voice_engine_defines.h"
 
 namespace webrtc {
@@ skipping 76 matching lines @@
   AudioFrame _audioFrame;
   // Converts mixed audio to the audio processing rate.
   PushResampler<int16_t> audioproc_resampler_;
   AudioLevel _audioLevel;  // measures audio level for the combined signal
   int _instanceId;
   VoEMediaProcess* _externalMediaCallbackPtr;
   bool _externalMedia;
   float _panLeft;
   float _panRight;
   int _mixingFrequencyHz;
-  FileRecorder* _outputFileRecorderPtr;
+  std::unique_ptr<FileRecorder> _outputFileRecorderPtr;
   bool _outputFileRecording;
 };
 
 }  // namespace voe
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_MIXER_AUDIO_MIXER_H_