Modifies AudioInputCallback::OnData and use media::AudioBus instead of plain byte vector

media/audio/fake_audio_input_stream.cc

Index: media/audio/fake_audio_input_stream.cc
diff --git a/media/audio/fake_audio_input_stream.cc b/media/audio/fake_audio_input_stream.cc
index e05b257997e300db425736f5b380deeb2b250a4b..4608dc223138c5b46fb32e1547bc73ae37ea156a 100644
--- a/media/audio/fake_audio_input_stream.cc
+++ b/media/audio/fake_audio_input_stream.cc
@@ -141,7 +141,8 @@ void FakeAudioInputStream::DoCallback() {
       beep_generated_in_buffers_ = 0;
   }
 
-  callback_->OnData(this, buffer_.get(), buffer_size_, buffer_size_, 1.0);
+  /* TODO(henrika)
+  callback_->OnData(this, buffer_.get(), buffer_size_, buffer_size_, 1.0); */
   frames_elapsed_ += params_.frames_per_buffer();
 
   thread_.message_loop()->PostDelayedTask(