Revert 290359 "Remove AudioBuffersState class."

trunk/src/media/cast/test/receiver.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <algorithm>
 #include <climits>
 #include <cstdarg>
 #include <cstdio>
 #include <deque>
 #include <map>
@@ skipping 298 matching lines @@
     audio_playout_queue_.push_back(
         std::make_pair(playout_time, audio_frame.release()));
   }
 
   // End of InProcessReceiver overrides.
   ////////////////////////////////////////////////////////////////////
 
   ////////////////////////////////////////////////////////////////////
   // AudioSourceCallback implementation.
 
-  virtual int OnMoreData(AudioBus* dest, int total_bytes_delay)
+  virtual int OnMoreData(AudioBus* dest, AudioBuffersState buffers_state)
       OVERRIDE {
     // Note: This method is being invoked by a separate thread unknown to us
     // (i.e., outside of CastEnvironment).
 
     int samples_remaining = dest->frames();
 
     while (samples_remaining > 0) {
       // Get next audio frame ready for playout.
       if (!currently_playing_audio_frame_.get()) {
         base::AutoLock auto_lock(audio_lock_);
 
         // Prune the queue, skipping entries that are too old.
-        // TODO(miu): Use |total_bytes_delay| to account for audio buffering
-        // delays upstream.
+        // TODO(miu): Use |buffers_state| to account for audio buffering delays
+        // upstream.
         const base::TimeTicks earliest_time_to_play =
             cast_env()->Clock()->NowTicks() - max_frame_age_;
         while (!audio_playout_queue_.empty() &&
                audio_playout_queue_.front().first < earliest_time_to_play) {
           PopOneAudioFrame(true);
         }
         if (audio_playout_queue_.empty())
           break;
 
         currently_playing_audio_frame_ = PopOneAudioFrame(false).Pass();
@@ skipping 248 matching lines @@
                                   audio_config,
                                   video_config,
                                   window_width,
                                   window_height);
   player.Start();
 
   base::MessageLoop().Run();  // Run forever (i.e., until SIGTERM).
   NOTREACHED();
   return 0;
 }