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

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index bfa70c0d8e1133af815cb29e83cb811d7ab10ed0..d705adefd437bb57d085ab221b52f92b64dceb07 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -2185,13 +2185,13 @@ bool Element::isMouseFocusable() const
 
 void Element::dispatchFocusEvent(Element* oldFocusedElement, FocusDirection)
 {
-    RefPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::focus, false, false, document().defaultView(), 0, oldFocusedElement);
+    RefPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::focus, false, false, document().domWindow(), 0, oldFocusedElement);
     EventDispatcher::dispatchEvent(this, FocusEventDispatchMediator::create(event.release()));
 }
 
 void Element::dispatchBlurEvent(Element* newFocusedElement)
 {
-    RefPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::blur, false, false, document().defaultView(), 0, newFocusedElement);
+    RefPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::blur, false, false, document().domWindow(), 0, newFocusedElement);
     EventDispatcher::dispatchEvent(this, BlurEventDispatchMediator::create(event.release()));
 }
 
@@ -2199,14 +2199,14 @@ void Element::dispatchFocusInEvent(const AtomicString& eventType, Element* oldFo
 {
     ASSERT(!NoEventDispatchAssertion::isEventDispatchForbidden());
     ASSERT(eventType == EventTypeNames::focusin || eventType == EventTypeNames::DOMFocusIn);
-    dispatchScopedEventDispatchMediator(FocusInEventDispatchMediator::create(FocusEvent::create(eventType, true, false, document().defaultView(), 0, oldFocusedElement)));
+    dispatchScopedEventDispatchMediator(FocusInEventDispatchMediator::create(FocusEvent::create(eventType, true, false, document().domWindow(), 0, oldFocusedElement)));
 }
 
 void Element::dispatchFocusOutEvent(const AtomicString& eventType, Element* newFocusedElement)
 {
     ASSERT(!NoEventDispatchAssertion::isEventDispatchForbidden());
     ASSERT(eventType == EventTypeNames::focusout || eventType == EventTypeNames::DOMFocusOut);
-    dispatchScopedEventDispatchMediator(FocusOutEventDispatchMediator::create(FocusEvent::create(eventType, true, false, document().defaultView(), 0, newFocusedElement)));
+    dispatchScopedEventDispatchMediator(FocusOutEventDispatchMediator::create(FocusEvent::create(eventType, true, false, document().domWindow(), 0, newFocusedElement)));
 }
 
 String Element::innerText()