Remove unused method OutputMixer::PlayDtmfTone() and infrastructure.

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.
  */
 
 #ifndef WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_H_
 #define WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_H_
 
 #include "webrtc/base/criticalsection.h"
 #include "webrtc/common_audio/resampler/include/push_resampler.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/audio_conference_mixer/include/audio_conference_mixer.h"
 #include "webrtc/modules/audio_conference_mixer/include/audio_conference_mixer_defines.h"
 #include "webrtc/modules/utility/include/file_recorder.h"
-#include "webrtc/voice_engine/dtmf_inband.h"
 #include "webrtc/voice_engine/level_indicator.h"
 #include "webrtc/voice_engine/voice_engine_defines.h"
 
 namespace webrtc {
 
 class AudioProcessing;
 class FileWrapper;
 class VoEMediaProcess;
 
 namespace voe {
@@ skipping 12 matching lines @@
 
     int32_t SetAudioProcessingModule(
         AudioProcessing* audioProcessingModule);
 
     // VoEExternalMedia
     int RegisterExternalMediaProcessing(
         VoEMediaProcess& proccess_object);
 
     int DeRegisterExternalMediaProcessing();
 
-    // VoEDtmf
-    int PlayDtmfTone(uint8_t eventCode, int lengthMs, int attenuationDb);
-
     int32_t MixActiveChannels();
 
     int32_t DoOperationsOnCombinedSignal(bool feed_data_to_apm);
 
     int32_t SetMixabilityStatus(MixerParticipant& participant,
                                 bool mixable);
 
     int32_t SetAnonymousMixabilityStatus(MixerParticipant& participant,
                                          bool mixable);
 
@@ skipping 29 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);
-    int InsertInbandDtmfTone();
 
     // uses
     Statistics* _engineStatisticsPtr;
     AudioProcessing* _audioProcessingModulePtr;
 
     rtc::CriticalSection _callbackCritSect;
     // protect the _outputFileRecorderPtr and _outputFileRecording
     rtc::CriticalSection _fileCritSect;
     AudioConferenceMixer& _mixerModule;
     AudioFrame _audioFrame;
     // Converts mixed audio to the audio device output rate.
     PushResampler<int16_t> resampler_;
     // Converts mixed audio to the audio processing rate.
     PushResampler<int16_t> audioproc_resampler_;
     AudioLevel _audioLevel;    // measures audio level for the combined signal
-    DtmfInband _dtmfGenerator;
     int _instanceId;
     VoEMediaProcess* _externalMediaCallbackPtr;
     bool _externalMedia;
     float _panLeft;
     float _panRight;
     int _mixingFrequencyHz;
     FileRecorder* _outputFileRecorderPtr;
     bool _outputFileRecording;
 };
 
 }  // namespace voe
 
 }  // namespace werbtc
 
 #endif  // VOICE_ENGINE_OUTPUT_MIXER_H_