Notification should not leak document.

Source/modules/notifications/Notification.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 15 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Notification_h
 #define Notification_h
 
 #include "bindings/v8/ScriptWrappable.h"
-#include "core/dom/ActiveDOMObject.h"
+#include "core/dom/ContextLifecycleObserver.h"
 #include "core/dom/EventNames.h"
 #include "core/dom/EventTarget.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "core/platform/SharedBuffer.h"
 #include "core/platform/text/TextDirection.h"
 #include "modules/notifications/NotificationClient.h"
 #include "weborigin/KURL.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/AtomicStringHash.h"
 
 #if ENABLE(NOTIFICATIONS)
 #include "core/platform/Timer.h"
 #endif
 
 #if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
 namespace WebCore {
 
 class Dictionary;
 class ExceptionState;
 class NotificationCenter;
 class NotificationPermissionCallback;
 class ResourceError;
 class ResourceResponse;
 class ScriptExecutionContext;
 class ThreadableLoader;
 
-class Notification : public RefCounted<Notification>, public ScriptWrappable, public ActiveDOMObject, public EventTarget {
+class Notification : public RefCounted<Notification>, public ScriptWrappable, public ContextLifecycleObserver, public EventTarget {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     Notification();
 #if ENABLE(LEGACY_NOTIFICATIONS)
     static PassRefPtr<Notification> create(const String& title, const String& body, const String& iconURI, ScriptExecutionContext*, ExceptionState&, PassRefPtr<NotificationCenter> provider);
 #endif
 #if ENABLE(NOTIFICATIONS)
     static PassRefPtr<Notification> create(ScriptExecutionContext*, const String& title, const Dictionary& options);
 #endif
 
@@ skipping 38 matching lines @@
     void dispatchClickEvent();
     void dispatchCloseEvent();
     void dispatchErrorEvent();
     void dispatchShowEvent();
 
     using RefCounted<Notification>::ref;
     using RefCounted<Notification>::deref;
 
     // EventTarget interface
     virtual const AtomicString& interfaceName() const;
-    virtual ScriptExecutionContext* scriptExecutionContext() const { return ActiveDOMObject::scriptExecutionContext(); }
+    virtual ScriptExecutionContext* scriptExecutionContext() const { return ContextLifecycleObserver::scriptExecutionContext(); }
 
-    // ActiveDOMObject interface
+    // ContextLifecycleObserver interface
     virtual void contextDestroyed();
 
     void stopLoadingIcon();
 
     // Deprecated. Use functions from NotificationCenter.
     void detachPresenter() { }
 
     void finalize();
 
 #if ENABLE(NOTIFICATIONS)
@@ skipping 49 matching lines @@
 #if ENABLE(NOTIFICATIONS)
     OwnPtr<Timer<Notification> > m_taskTimer;
 #endif
 };
 
 } // namespace WebCore
 
 #endif // ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
 
 #endif // Notifications_h