Oilpan: Add [WillBeGarbageCollected] to Event.idl

Source/modules/gamepad/GamepadEvent.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef GamepadEvent_h
 #define GamepadEvent_h
 
 #include "core/events/Event.h"
 #include "modules/gamepad/Gamepad.h"
 
 namespace WebCore {
 
 struct GamepadEventInit : public EventInit {
     GamepadEventInit();
 
     RefPtrWillBeMember<Gamepad> gamepad;
 };
 
 class GamepadEvent FINAL : public Event {
 public:
-    static PassRefPtr<GamepadEvent> create()
+    static PassRefPtrWillBeRawPtr<GamepadEvent> create()
     {
-        return adoptRef(new GamepadEvent);
+        return adoptRefWillBeRefCountedGarbageCollected(new GamepadEvent);
     }
-    static PassRefPtr<GamepadEvent> create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Gamepad> gamepad)
+    static PassRefPtrWillBeRawPtr<GamepadEvent> create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Gamepad> gamepad)
     {
-        return adoptRef(new GamepadEvent(type, canBubble, cancelable, gamepad));
+        return adoptRefWillBeRefCountedGarbageCollected(new GamepadEvent(type, canBubble, cancelable, gamepad));
     }
-    static PassRefPtr<GamepadEvent> create(const AtomicString& type, const GamepadEventInit& initializer)
+    static PassRefPtrWillBeRawPtr<GamepadEvent> create(const AtomicString& type, const GamepadEventInit& initializer)
     {
-        return adoptRef(new GamepadEvent(type, initializer));
+        return adoptRefWillBeRefCountedGarbageCollected(new GamepadEvent(type, initializer));
     }
     virtual ~GamepadEvent();
 
     Gamepad* gamepad() const { return m_gamepad.get(); }
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
 
     virtual void trace(Visitor*) OVERRIDE;
 
 private:
     GamepadEvent();
     GamepadEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Gamepad>);
     GamepadEvent(const AtomicString&, const GamepadEventInit&);
 
     RefPtrWillBeMember<Gamepad> m_gamepad;
 };
 
 } // namespace WebCore
 
 #endif // GamepadEvent_h