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

content/renderer/media/webrtc_audio_renderer.cc

Index: content/renderer/media/webrtc_audio_renderer.cc
diff --git a/content/renderer/media/webrtc_audio_renderer.cc b/content/renderer/media/webrtc_audio_renderer.cc
index f61147e29c5f6435963c650f2fffe65b10846ef6..0df8b70fcfa484c9302936e3ef0a22be4d280c55 100644
--- a/content/renderer/media/webrtc_audio_renderer.cc
+++ b/content/renderer/media/webrtc_audio_renderer.cc
@@ -417,7 +417,8 @@ media::OutputDeviceStatus WebRtcAudioRenderer::GetDeviceStatus() {
 }
 
 int WebRtcAudioRenderer::Render(media::AudioBus* audio_bus,
-                                int audio_delay_milliseconds) {
+                                uint32_t audio_delay_milliseconds,
+                                uint32_t frames_skipped) {
   DCHECK(audio_renderer_thread_checker_.CalledOnValidThread());
   base::AutoLock auto_lock(lock_);
   if (!source_)
@@ -426,7 +427,8 @@ int WebRtcAudioRenderer::Render(media::AudioBus* audio_bus,
   DVLOG(2) << "WebRtcAudioRenderer::Render()";
   DVLOG(2) << "audio_delay_milliseconds: " << audio_delay_milliseconds;
 
-  audio_delay_milliseconds_ = audio_delay_milliseconds;
+  DCHECK_LE(audio_delay_milliseconds, static_cast<uint32_t>(INT_MAX));
+  audio_delay_milliseconds_ = static_cast<int>(audio_delay_milliseconds);
 
   if (audio_fifo_)
     audio_fifo_->Consume(audio_bus, audio_bus->frames());