Forward the number of skipped frames by the OS in audio playout.

media/audio/win/waveout_output_win.cc

 // Copyright (c) 2012 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 "media/audio/win/waveout_output_win.h"
 
 #pragma comment(lib, "winmm.lib")
 
 #include "base/atomicops.h"
 #include "base/basictypes.h"
@@ skipping 309 matching lines @@
 }
 
 void PCMWaveOutAudioOutputStream::QueueNextPacket(WAVEHDR *buffer) {
   DCHECK_EQ(channels_, format_.Format.nChannels);
   // Call the source which will fill our buffer with pleasant sounds and
   // return to us how many bytes were used.
   // TODO(fbarchard): Handle used 0 by queueing more.
 
   // TODO(sergeyu): Specify correct hardware delay for |total_delay_bytes|.
   uint32 total_delay_bytes = pending_bytes_;
-  int frames_filled = callback_->OnMoreData(
-      audio_bus_.get(), total_delay_bytes);
+  int frames_filled =
+      callback_->OnMoreData(audio_bus_.get(), total_delay_bytes, 0);
   uint32 used = frames_filled * audio_bus_->channels() *
       format_.Format.wBitsPerSample / 8;
 
   if (used <= buffer_size_) {
     // Note: If this ever changes to output raw float the data must be clipped
     // and sanitized since it may come from an untrusted source such as NaCl.
     audio_bus_->Scale(volume_);
     audio_bus_->ToInterleaved(
         frames_filled, format_.Format.wBitsPerSample / 8, buffer->lpData);
 
@@ skipping 46 matching lines @@
                                        buffer,
                                        sizeof(WAVEHDR));
       if (result != MMSYSERR_NOERROR)
         stream->HandleError(result);
       stream->pending_bytes_ += buffer->dwBufferLength;
     }
   }
 }
 
 }  // namespace media