Bug 848954 - Part 11 - When deciding to block a MediaStream due to a speculative data underrun, don't block if we have exactly the right number of frames buffered. r=roc

content/media/MediaStreamGraph.cpp

@@ -467,7 +467,7 @@ MediaStreamGraphImpl::WillUnderrun(MediaStream* aStream, GraphTime aTime,
   // data all the way through to aEndBlockingDecisions, we'll block soon,
   // but we might as well remain unblocked and play the data we've got while
   // we can.
-  if (bufferEnd <= aEndBlockingDecisions && aStream->mBlocked.GetBefore(aTime)) {
+  if (bufferEnd < aEndBlockingDecisions && aStream->mBlocked.GetBefore(aTime)) {
     STREAM_LOG(PR_LOG_DEBUG+1, ("MediaStream %p will block due to speculative data underrun, "
                                 "bufferEnd %f (end at %ld)",
                                 aStream, MediaTimeToSeconds(bufferEnd), bufferEnd));