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

content/renderer/media/webrtc_audio_renderer.h

Index: content/renderer/media/webrtc_audio_renderer.h
diff --git a/content/renderer/media/webrtc_audio_renderer.h b/content/renderer/media/webrtc_audio_renderer.h
index 0f016eb157a82da783980716e53f149acd70651f..1502fb9a14720e2c3c3c4e2ddbbecbe2a71b0e3f 100644
--- a/content/renderer/media/webrtc_audio_renderer.h
+++ b/content/renderer/media/webrtc_audio_renderer.h
@@ -168,7 +168,9 @@ class CONTENT_EXPORT WebRtcAudioRenderer
 
   // media::AudioRendererSink::RenderCallback implementation.
   // These two methods are called on the AudioOutputDevice worker thread.
-  int Render(media::AudioBus* audio_bus, int audio_delay_milliseconds) override;
+  int Render(media::AudioBus* audio_bus,
+             uint32_t audio_delay_milliseconds,
+             uint32_t frames_skipped) override;
   void OnRenderError() override;
 
   // Called by AudioPullFifo when more data is necessary.