Add mute state field to AudioFrame.

webrtc/voice_engine/transmit_mixer.cc

 /*
  *  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 918 matching lines @@
           return -1;
         }
     }
 
     assert(_audioFrame.samples_per_channel_ == fileSamples);
 
     if (_mixFileWithMicrophone)
     {
         // Currently file stream is always mono.
         // TODO(xians): Change the code when FilePlayer supports real stereo.
-        MixWithSat(_audioFrame.data_,
+        MixWithSat(_audioFrame.mutable_data(),
                    _audioFrame.num_channels_,
                    fileBuffer.get(),
                    1,
                    fileSamples);
     } else
     {
         // Replace ACM audio with file.
         // Currently file stream is always mono.
         // TODO(xians): Change the code when FilePlayer supports real stereo.
         _audioFrame.UpdateFrame(-1,
@@ skipping 66 matching lines @@
 void TransmitMixer::EnableStereoChannelSwapping(bool enable) {
   swap_stereo_channels_ = enable;
 }
 
 bool TransmitMixer::IsStereoChannelSwappingEnabled() {
   return swap_stereo_channels_;
 }
 
 }  // namespace voe
 }  // namespace webrtc