1 files changed, 2 insertions, 2 deletions
diff --git a/Source/WebCore/dom/DeviceMotionController.h b/Source/WebCore/dom/DeviceMotionController.h
index 70c948e..80c9d94 100644
--- a/Source/WebCore/dom/DeviceMotionController.h
+++ b/Source/WebCore/dom/DeviceMotionController.h
@@ -52,9 +52,9 @@ private:
     void timerFired(Timer<DeviceMotionController>*);
     
     DeviceMotionClient* m_client;
-    typedef HashCountedSet<DOMWindow*> ListenersCountedSet;
+    typedef HashCountedSet<RefPtr<DOMWindow> > ListenersCountedSet;
     ListenersCountedSet m_listeners;
-    typedef HashSet<DOMWindow*> ListenersSet;
+    typedef HashSet<RefPtr<DOMWindow> > ListenersSet;
     ListenersSet m_newListeners;
     Timer<DeviceMotionController> m_timer;
 };