Address post commit nits for r151132

media/base/video_renderer.h

Index: media/base/video_renderer.h
diff --git a/media/base/video_renderer.h b/media/base/video_renderer.h
index 0ac60e8189453613a4546c9dbe361bb42d9bac06..57e22bc272d207e0c98ee9da3139f06e1d8f825a 100644
--- a/media/base/video_renderer.h
+++ b/media/base/video_renderer.h
@@ -37,8 +37,8 @@ class MEDIA_EXPORT VideoRenderer
   // Used to query the current time or duration of the media.
   typedef base::Callback<base::TimeDelta()> TimeDeltaCB;
 
-  // Initialize a VideoRenderer with the given VideoDecoder, executing
-  // |init_cb| callback upon completion.
+  // Initialize a VideoRenderer with the given DemuxerStream and
+  // VideoDecoderList, executing |init_cb| callback upon completion.
   //
   // |statistics_cb| is executed periodically with video rendering stats, such
   // as dropped frames.