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

media/audio/pulse/pulse_input.h

Index: media/audio/pulse/pulse_input.h
diff --git a/media/audio/pulse/pulse_input.h b/media/audio/pulse/pulse_input.h
index 7566eacf10ba297b51798009e91ac59291da1693..7e64bb296a8749c0a15ce2fa3679897a29f338bb 100644
--- a/media/audio/pulse/pulse_input.h
+++ b/media/audio/pulse/pulse_input.h
@@ -75,6 +75,8 @@ class PulseAudioInputStream : public AgcAudioStream<AudioInputStream> {
   // Flag indicating the state of the context has been changed.
   bool context_state_changed_;
 
+  scoped_ptr<AudioBus> audio_bus_;
+
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(PulseAudioInputStream);