Collapse AudioRendererMixer and OnMoreDataResampler into AudioTransform.

remoting/codec/audio_encoder_opus.cc

Index: remoting/codec/audio_encoder_opus.cc
diff --git a/remoting/codec/audio_encoder_opus.cc b/remoting/codec/audio_encoder_opus.cc
index 6ff3056d5e77d9345699a339aad6232dd9174c64..ab19c949a32e43d14193662b494571f7812d134d 100644
--- a/remoting/codec/audio_encoder_opus.cc
+++ b/remoting/codec/audio_encoder_opus.cc
@@ -124,7 +124,8 @@ bool AudioEncoderOpus::ResetForPacket(AudioPacket* packet) {
   return encoder_ != NULL;
 }
 
-void AudioEncoderOpus::FetchBytesToResample(media::AudioBus* audio_bus) {
+void AudioEncoderOpus::FetchBytesToResample(int resampler_frame_delay,
+                                            media::AudioBus* audio_bus) {
   DCHECK(resampling_data_);
   int samples_left = (resampling_data_size_ - resampling_data_pos_) /
       kBytesPerSample / channels_;