Use [ImplementedAs=domWindow] for Document.defaultView()

Source/core/dom/NamedFlow.cpp

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 194 matching lines @@
 }
 
 void NamedFlow::dispatchRegionLayoutUpdateEvent()
 {
     ASSERT(!NoEventDispatchAssertion::isEventDispatchForbidden());
 
     // If the flow is in the "NULL" state the event should not be dispatched any more.
     if (flowState() == FlowStateNull)
         return;
 
-    RefPtr<Event> event = UIEvent::create(EventTypeNames::webkitregionlayoutupdate, false, false, m_flowManager->document()->defaultView(), 0);
+    RefPtr<Event> event = UIEvent::create(EventTypeNames::webkitregionlayoutupdate, false, false, m_flowManager->document()->domWindow(), 0);
 
     dispatchEvent(event);
 }
 
 void NamedFlow::dispatchRegionOversetChangeEvent()
 {
     ASSERT(!NoEventDispatchAssertion::isEventDispatchForbidden());
 
     // If the flow is in the "NULL" state the event should not be dispatched any more.
     if (flowState() == FlowStateNull)
         return;
 
-    RefPtr<Event> event = UIEvent::create(EventTypeNames::webkitregionoversetchange, false, false, m_flowManager->document()->defaultView(), 0);
+    RefPtr<Event> event = UIEvent::create(EventTypeNames::webkitregionoversetchange, false, false, m_flowManager->document()->domWindow(), 0);
 
     dispatchEvent(event);
 }
 
 const AtomicString& NamedFlow::interfaceName() const
 {
     return EventTargetNames::NamedFlow;
 }
 
 ScriptExecutionContext* NamedFlow::scriptExecutionContext() const
 {
     return m_flowManager->document();
 }
 
 Node* NamedFlow::ownerNode() const
 {
     return m_flowManager->document();
 }
 
 } // namespace WebCore