Index: chrome/browser/extensions/event_router.h |
diff --git a/chrome/browser/extensions/event_router.h b/chrome/browser/extensions/event_router.h |
index 9df75ea05a77b19e9bd58743ce7177d2aeef4a87..b93155fcd0deea4547b4d7363cbde7cf04ac3ef9 100644 |
--- a/chrome/browser/extensions/event_router.h |
+++ b/chrome/browser/extensions/event_router.h |
@@ -57,6 +57,9 @@ class EventRouter : public content::NotificationObserver, |
virtual void OnListenerAdded(const EventListenerInfo& details) {} |
// Called when a listener is removed. |
virtual void OnListenerRemoved(const EventListenerInfo& details) {} |
+ |
+ protected: |
+ virtual ~Observer() {} |
}; |
// Sends an event via ipc_sender to the given extension. Can be called on any |