Pass the elapsed time from VoE to WebRtcAudioRenderer as the current time for the audio/video eleme…

content/renderer/media/webrtc_audio_renderer.cc

Index: content/renderer/media/webrtc_audio_renderer.cc
===================================================================
--- content/renderer/media/webrtc_audio_renderer.cc	(revision 275847)
+++ content/renderer/media/webrtc_audio_renderer.cc	(working copy)
@@ -417,6 +417,12 @@
     state_ = PAUSED;
 }
 
+void WebRtcAudioRenderer::SetCurrentRenderTime(
+    const base::TimeDelta& current_time) {
+  lock_.AssertAcquired();

[Ronghua Wu (Left Chromium), 2014/06/10 21:48:22]

this is called by
WebRtcAudioRenderer::Render ->
WebRtcAudioRenderer::SourceCallback ->
WebRtcAudioDeviceImpl::RenderData ->
WebRtcAudioRenderer::SetCurrentRenderTime

The lock should have already been acquired at this point. We can't acquire it
again.

[no longer working on chromium, 2014/06/11 16:55:01]

Please use the interface and avoid this setter instead.

[Ronghua Wu (Left Chromium), 2014/06/11 17:39:15]

Done.

+  current_time_ = current_time;
+}
+
 void WebRtcAudioRenderer::Stop() {
   DVLOG(1) << "WebRtcAudioRenderer::Stop()";
   DCHECK(thread_checker_.CalledOnValidThread());
@@ -450,7 +456,9 @@
 }
 
 base::TimeDelta WebRtcAudioRenderer::GetCurrentRenderTime() const {
-  return base::TimeDelta();
+  DCHECK(thread_checker_.CalledOnValidThread());
+  base::AutoLock auto_lock(lock_);
+  return current_time_;
 }
 
 bool WebRtcAudioRenderer::IsLocalRenderer() const {