Fix 77206, prevent reentrant events from overwriting listener state. sr;jst, r:pollmann, a:dbaron

content/events/src/nsEventListenerManager.cpp

@@ -1184,8 +1184,6 @@ nsresult nsEventListenerManager::HandleEvent(nsIPresContext* aPresContext,
   NS_ENSURE_ARG_POINTER(aEventStatus);
   nsresult ret = NS_OK;
 
-  mListenersRemoved = PR_FALSE;
-
   if (aFlags & NS_EVENT_FLAG_INIT) {
     aFlags |= (NS_EVENT_FLAG_BUBBLE | NS_EVENT_FLAG_CAPTURE);
   }
@@ -2254,8 +2252,6 @@ nsresult nsEventListenerManager::HandleEvent(nsIPresContext* aPresContext,
     *aEventStatus = nsEventStatus_eConsumeNoDefault;
   }
 
-  mListenersRemoved = PR_FALSE;
-
   return NS_OK;
 }