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

media/cast/test/utility/audio_utility.cc

Index: media/cast/test/utility/audio_utility.cc
diff --git a/media/cast/test/utility/audio_utility.cc b/media/cast/test/utility/audio_utility.cc
index 094f141ab0eca40f603427acb016c1a882e4ac8b..41ecd1530c86262a5dc7015975c063608e0f1892 100644
--- a/media/cast/test/utility/audio_utility.cc
+++ b/media/cast/test/utility/audio_utility.cc
@@ -36,7 +36,7 @@ scoped_ptr<AudioBus> TestAudioBusFactory::NextAudioBus(
   const int num_samples = static_cast<int>((sample_rate_ * duration) /
                                            base::TimeDelta::FromSeconds(1));
   scoped_ptr<AudioBus> bus(AudioBus::Create(num_channels_, num_samples));
-  source_.OnMoreData(bus.get(), 0);
+  source_.OnMoreData(bus.get(), 0, 0);
   bus->Scale(volume_);
   return bus.Pass();
 }