Bugfix that fixes the integration issue that cause WebRTC AEC mobile to fail

webrtc/voice_engine/output_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.
  */
 
@@ skipping 84 matching lines @@
     // For file recording
     void PlayNotification(int32_t id, uint32_t durationMs);
 
     void RecordNotification(int32_t id, uint32_t durationMs);
 
     void PlayFileEnded(int32_t id);
     void RecordFileEnded(int32_t id);
 
 private:
     OutputMixer(uint32_t instanceId);
-    void APMProcessReverseStream();
     int InsertInbandDtmfTone();
 
     // uses
     Statistics* _engineStatisticsPtr;
     AudioProcessing* _audioProcessingModulePtr;
 
     // owns
     CriticalSectionWrapper& _callbackCritSect;
     // protect the _outputFileRecorderPtr and _outputFileRecording
     CriticalSectionWrapper& _fileCritSect;
@@ skipping 13 matching lines @@
     int _mixingFrequencyHz;
     FileRecorder* _outputFileRecorderPtr;
     bool _outputFileRecording;
 };
 
 }  // namespace voe
 
 }  // namespace werbtc
 
 #endif  // VOICE_ENGINE_OUTPUT_MIXER_H_