Oilpan: Replace most of RefPtrs for Event objects with oilpan's transition types

Source/core/events/GestureEvent.h

 /*
  * Copyright (C) 2012 Google 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.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 39 matching lines @@
 private:
     GestureEvent();
     GestureEvent(const AtomicString& type, PassRefPtrWillBeRawPtr<AbstractView>, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY);
 
     float m_deltaX;
     float m_deltaY;
 };
 
 class GestureEventDispatchMediator FINAL : public EventDispatchMediator {
 public:
-    static PassRefPtr<GestureEventDispatchMediator> create(PassRefPtr<GestureEvent> gestureEvent)
+    static PassRefPtr<GestureEventDispatchMediator> create(PassRefPtrWillBeRawPtr<GestureEvent> gestureEvent)
     {
         return adoptRef(new GestureEventDispatchMediator(gestureEvent));
     }
 
 private:
-    explicit GestureEventDispatchMediator(PassRefPtr<GestureEvent>);
+    explicit GestureEventDispatchMediator(PassRefPtrWillBeRawPtr<GestureEvent>);
 
     GestureEvent* event() const;
 
     virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
 };
 
 DEFINE_EVENT_TYPE_CASTS(GestureEvent);
 
 } // namespace WebCore
 
 #endif // GestureEvent_h