Remove usage of VoEVolumeControl from WVoE and Audio[Send|Receive]Stream.

webrtc/voice_engine/transmit_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 69 matching lines @@
 
     int32_t StopSend();
 
     // VoEVolumeControl
     int SetMute(bool enable);
 
     bool Mute() const;
 
     int8_t AudioLevel() const;
 
-    int16_t AudioLevelFullRange() const;
+    // 'virtual' to allow mocking.
+    virtual int16_t AudioLevelFullRange() const;
 
     bool IsRecordingCall();
 
     bool IsRecordingMic();
 
     int StartPlayingFileAsMicrophone(const char* fileName,
                                      bool loop,
                                      FileFormats format,
                                      int startPosition,
                                      float volumeScaling,
@@ skipping 126 matching lines @@
     bool _mixFileWithMicrophone = false;
     uint32_t _captureLevel = 0;
     bool _mute = false;
     bool stereo_codec_ = false;
     bool swap_stereo_channels_ = false;
 };
 }  // namespace voe
 }  // namespace webrtc
 
 #endif  // WEBRTC_VOICE_ENGINE_TRANSMIT_MIXER_H