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

media/base/audio_renderer_mixer.cc

Index: media/base/audio_renderer_mixer.cc
diff --git a/media/base/audio_renderer_mixer.cc b/media/base/audio_renderer_mixer.cc
index 984798d916d6ce59ace8ebd9244c23693eb9db4b..d94003e5bd74c16427a2a1288b57d6a8088c994a 100644
--- a/media/base/audio_renderer_mixer.cc
+++ b/media/base/audio_renderer_mixer.cc
@@ -78,7 +78,8 @@ OutputDevice* AudioRendererMixer::GetOutputDevice() {
 }
 
 int AudioRendererMixer::Render(AudioBus* audio_bus,
-                               int audio_delay_milliseconds) {
+                               uint32_t audio_delay_milliseconds,
+                               uint32_t frames_skipped) {
   base::AutoLock auto_lock(lock_);
 
   // If there are no mixer inputs and we haven't seen one for a while, pause the