1 files changed, 15 insertions, 3 deletions
diff --git a/dom/performance/Performance.cpp b/dom/performance/Performance.cpp
index 217faa5afe..e8a46409ef 100755
--- a/dom/performance/Performance.cpp
+++ b/dom/performance/Performance.cpp
@@ -712,9 +712,21 @@ Performance::QueueEntry(PerformanceEntry* aEntry)
   if (mObservers.IsEmpty()) {
     return;
   }
-  NS_OBSERVER_ARRAY_NOTIFY_XPCOM_OBSERVERS(mObservers,
-                                           PerformanceObserver,
-                                           QueueEntry, (aEntry));
+  nsTObserverArray<PerformanceObserver*> interestedObservers;
+  nsTObserverArray<PerformanceObserver*>::ForwardIterator observerIt(
+      mObservers);
+  while (observerIt.HasMore()) {
+    PerformanceObserver* observer = observerIt.GetNext();
+    if (observer->ObservesTypeOfEntry(aEntry)) {
+      interestedObservers.AppendElement(observer);
+    }
+  }
+
+  if (interestedObservers.IsEmpty()) {
+    return;
+  }
+
+  NS_OBSERVER_ARRAY_NOTIFY_XPCOM_OBSERVERS(interestedObservers, PerformanceObserver, QueueEntry, (aEntry));
 
   if (!mPendingNotificationObserversTask) {
     RunNotificationObserversTask();