Bug 995090 - Update MediaCache again when there are changes in |MediaCache::mStreams|. r=roc

content/media/MediaCache.cpp

@@ -1552,6 +1552,11 @@ MediaCache::ReleaseStream(MediaCacheStream* aStream)
   ReentrantMonitorAutoEnter mon(mReentrantMonitor);
   CACHE_LOG(PR_LOG_DEBUG, ("Stream %p closed", aStream));
   mStreams.RemoveElement(aStream);
+
+  // Update MediaCache again for |mStreams| is changed.
+  // We need to re-run Update() to ensure streams reading from the same resource
+  // as the removed stream get a chance to continue reading.
+  gMediaCache->QueueUpdate();
 }
 
 void