Bug 848954 - Part 29 - Make the MSG in stable state event ref counted. r=padenot

content/media/MediaStreamGraph.cpp

@@ -1482,7 +1482,7 @@ public:
     return NS_OK;
   }
 private:
-  MediaStreamGraphImpl* mGraph;
+  nsRefPtr<MediaStreamGraphImpl> mGraph;
 };
 
 class MediaStreamGraphStableStateRunnable : public nsRunnable {
@@ -1501,7 +1501,7 @@ public:
     return NS_OK;
   }
 private:
-  MediaStreamGraphImpl* mGraph;
+  nsRefPtr<MediaStreamGraphImpl> mGraph;
   bool mSourceIsMSG;
 };
 

content/media/MediaStreamGraphImpl.h

@@ -85,7 +85,7 @@ public:
 class MediaStreamGraphImpl : public MediaStreamGraph,
                              public nsIMemoryReporter {
 public:
-  NS_DECL_ISUPPORTS
+  NS_DECL_THREADSAFE_ISUPPORTS
   NS_DECL_NSIMEMORYREPORTER
 
   /**