Bug 1244250 - r=mats

layout/style/nsAnimationManager.h

@@ -313,7 +313,11 @@ public:
    * accumulate animationstart events at other points when style
    * contexts are created.
    */
-  void DispatchEvents()  { mEventDispatcher.DispatchEvents(mPresContext); }
+  void DispatchEvents()
+  {
+    RefPtr<nsAnimationManager> kungFuDeathGrip(this);
+    mEventDispatcher.DispatchEvents(mPresContext);
+  }
   void SortEvents()      { mEventDispatcher.SortEvents(); }
   void ClearEventQueue() { mEventDispatcher.ClearEventQueue(); }
 

layout/style/nsTransitionManager.h

@@ -306,7 +306,11 @@ public:
       mozilla::Forward<mozilla::TransitionEventInfo>(aEventInfo));
   }
 
-  void DispatchEvents()  { mEventDispatcher.DispatchEvents(mPresContext); }
+  void DispatchEvents()
+  {
+    RefPtr<nsTransitionManager> kungFuDeathGrip(this);
+    mEventDispatcher.DispatchEvents(mPresContext);
+  }
   void SortEvents()      { mEventDispatcher.SortEvents(); }
   void ClearEventQueue() { mEventDispatcher.ClearEventQueue(); }