Remove voe::OutputMixer and AudioConferenceMixer.

voice_engine/voe_base_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 44 matching lines @@
   int32_t RecordedDataIsAvailable(const void* audio_data,
                                   const size_t number_of_frames,
                                   const size_t bytes_per_sample,
                                   const size_t number_of_channels,
                                   const uint32_t sample_rate,
                                   const uint32_t audio_delay_milliseconds,
                                   const int32_t clock_drift,
                                   const uint32_t volume,
                                   const bool key_pressed,
                                   uint32_t& new_mic_volume) override;
-  int32_t NeedMorePlayData(const size_t nSamples,
-                           const size_t nBytesPerSample,
-                           const size_t nChannels,
-                           const uint32_t samplesPerSec,
-                           void* audioSamples,
-                           size_t& nSamplesOut,
-                           int64_t* elapsed_time_ms,
-                           int64_t* ntp_time_ms) override;
+  RTC_DEPRECATED int32_t NeedMorePlayData(const size_t nSamples,
+                                          const size_t nBytesPerSample,
+                                          const size_t nChannels,
+                                          const uint32_t samplesPerSec,
+                                          void* audioSamples,
+                                          size_t& nSamplesOut,
+                                          int64_t* elapsed_time_ms,
+                                          int64_t* ntp_time_ms) override;
   void PushCaptureData(int voe_channel,
                        const void* audio_data,
                        int bits_per_sample,
                        int sample_rate,
                        size_t number_of_channels,
                        size_t number_of_frames) override;
-  void PullRenderData(int bits_per_sample,
-                      int sample_rate,
-                      size_t number_of_channels,
-                      size_t number_of_frames,
-                      void* audio_data,
-                      int64_t* elapsed_time_ms,
-                      int64_t* ntp_time_ms) override;
+  RTC_DEPRECATED void PullRenderData(int bits_per_sample,
+                                     int sample_rate,
+                                     size_t number_of_channels,
+                                     size_t number_of_frames,
+                                     void* audio_data,
+                                     int64_t* elapsed_time_ms,
+                                     int64_t* ntp_time_ms) override;
 
   // AudioDeviceObserver
   void OnErrorIsReported(const ErrorCode error) override;
   void OnWarningIsReported(const WarningCode warning) override;
 
  protected:
   VoEBaseImpl(voe::SharedData* shared);
   ~VoEBaseImpl() override;
 
  private:
@@ skipping 15 matching lines @@
   rtc::CriticalSection callbackCritSect_;
   rtc::scoped_refptr<AudioDecoderFactory> decoder_factory_;
 
   AudioFrame audioFrame_;
   voe::SharedData* shared_;
 };
 
 }  // namespace webrtc
 
 #endif  // VOICE_ENGINE_VOE_BASE_IMPL_H_