Change audio render thread checking to use new AudioRendererSink::BelongsToRendererThread()

media/base/audio_renderer_sink.h

Index: media/base/audio_renderer_sink.h
diff --git a/media/base/audio_renderer_sink.h b/media/base/audio_renderer_sink.h
index b0b5f26a729d3667882ded2265250250430b7c9e..5dcb58c49bdb9881255e24b6a086d0e4f58d818a 100644
--- a/media/base/audio_renderer_sink.h
+++ b/media/base/audio_renderer_sink.h
@@ -70,6 +70,9 @@ class AudioRendererSink
   // Must never be called on the IO thread.
   virtual OutputDeviceInfo GetOutputDeviceInfo() = 0;
 
+  // Returns true if called on rendering thread, otherwise false.

[DaleCurtis, 2016/06/14 17:07:49]

Since you've implemented this with a thread checker it will only work in debug
mode.

[Henrik Grunell, 2016/06/14 19:33:41]

Updated comment.

+  virtual bool CurrentThreadIsRenderingThread() = 0;
+
  protected:
   friend class base::RefCountedThreadSafe<AudioRendererSink>;
   virtual ~AudioRendererSink() {}