Remove AudioBuffersState class.

media/audio/win/waveout_output_win.cc

Index: media/audio/win/waveout_output_win.cc
diff --git a/media/audio/win/waveout_output_win.cc b/media/audio/win/waveout_output_win.cc
index 0f54817b14ac3d3b577513282e2ba1718cc13c9f..4d11e087bf156024ab4b422a941bf3758818b150 100644
--- a/media/audio/win/waveout_output_win.cc
+++ b/media/audio/win/waveout_output_win.cc
@@ -325,9 +325,10 @@ void PCMWaveOutAudioOutputStream::QueueNextPacket(WAVEHDR *buffer) {
   // return to us how many bytes were used.
   // TODO(fbarchard): Handle used 0 by queueing more.
 
-  // TODO(sergeyu): Specify correct hardware delay for AudioBuffersState.
+  // TODO(sergeyu): Specify correct hardware delay for |total_delay_bytes|.
+  int total_delay_bytes = pending_bytes_;
   int frames_filled = callback_->OnMoreData(
-      audio_bus_.get(), AudioBuffersState(pending_bytes_, 0));
+      audio_bus_.get(), total_delay_bytes);
   uint32 used = frames_filled * audio_bus_->channels() *
       format_.Format.wBitsPerSample / 8;