Revert "Add [WillBeGarbageCollected] to Event.idl"

Source/core/svg/SVGZoomEvent.h

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 12 matching lines @@
 #define SVGZoomEvent_h
 
 #include "core/events/UIEvent.h"
 #include "core/svg/SVGPoint.h"
 #include "core/svg/SVGRect.h"
 
 namespace WebCore {
 
 class SVGZoomEvent FINAL : public UIEvent {
 public:
-    static PassRefPtrWillBeRawPtr<SVGZoomEvent> create()
-    {
-        return adoptRefWillBeRefCountedGarbageCollected(new SVGZoomEvent);
-    }
+    static PassRefPtr<SVGZoomEvent> create() { return adoptRef(new SVGZoomEvent); }
 
     // 'SVGZoomEvent' functions
     PassRefPtr<SVGRectTearOff> zoomRectScreen() const;
 
     float previousScale() const;
     void setPreviousScale(float);
 
     PassRefPtr<SVGPointTearOff> previousTranslate() const;
 
     float newScale() const;
@@ skipping 11 matching lines @@
     float m_newScale;
     float m_previousScale;
 
     FloatPoint m_newTranslate;
     FloatPoint m_previousTranslate;
 };
 
 } // namespace WebCore
 
 #endif // SVGZoomEvent_h