Screen Orientation: fire event on Window instead of Screen.

Source/core/frame/Screen.h

Index: Source/core/frame/Screen.h
diff --git a/Source/core/frame/Screen.h b/Source/core/frame/Screen.h
index d03653e14bfafa21a69033a3e36b64cde265522e..e4ae7ca982f84acfb1c13ebc6626541d96dcfe50 100644
--- a/Source/core/frame/Screen.h
+++ b/Source/core/frame/Screen.h
@@ -31,7 +31,6 @@
 #define Screen_h
 
 #include "bindings/v8/ScriptWrappable.h"
-#include "core/events/EventTarget.h"
 #include "core/frame/DOMWindowProperty.h"
 #include "heap/Handle.h"
 #include "platform/Supplementable.h"
@@ -42,9 +41,8 @@ namespace WebCore {
 
     class LocalFrame;
 
-    class Screen FINAL : public RefCountedWillBeRefCountedGarbageCollected<Screen>, public ScriptWrappable, public EventTargetWithInlineData, public DOMWindowProperty, public WillBeHeapSupplementable<Screen> {
+    class Screen FINAL : public RefCountedWillBeRefCountedGarbageCollected<Screen>, public ScriptWrappable, public DOMWindowProperty, public WillBeHeapSupplementable<Screen> {
         WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Screen);
-        DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<Screen>);
     public:
         static PassRefPtrWillBeRawPtr<Screen> create(LocalFrame* frame)
         {
@@ -60,10 +58,6 @@ namespace WebCore {
         unsigned availHeight() const;
         unsigned availWidth() const;
 
-        // EventTarget.
-        virtual const AtomicString& interfaceName() const OVERRIDE;
-        virtual ExecutionContext* executionContext() const OVERRIDE;
-
         void trace(Visitor*);
 
     private: