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

Source/modules/gamepad/NavigatorGamepad.cpp

 /*
  * Copyright (C) 2011, 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 131 matching lines @@
     if (!m_gamepads)
         m_gamepads = GamepadList::create();
 
     RefPtrWillBeRawPtr<Gamepad> gamepad = m_gamepads->item(index);
     if (!gamepad)
         gamepad = Gamepad::create();
     sampleGamepad(index, *gamepad, webGamepad);
     m_gamepads->set(index, gamepad);
 
     const AtomicString& eventName = connected ? EventTypeNames::gamepadconnected : EventTypeNames::gamepaddisconnected;
-    RefPtr<GamepadEvent> event = GamepadEvent::create(eventName, false, true, gamepad.get());
+    RefPtrWillBeRawPtr<GamepadEvent> event = GamepadEvent::create(eventName, false, true, gamepad.get());
     window()->dispatchEvent(event);
 }
 
 NavigatorGamepad::NavigatorGamepad(Document& document)
     : DOMWindowProperty(document.frame())
     , DeviceSensorEventController(document)
     , DOMWindowLifecycleObserver(document.frame()->domWindow())
 {
 }
 
@@ skipping 27 matching lines @@
 {
     GamepadDispatcher::instance().removeClient(this);
 }
 
 bool NavigatorGamepad::hasLastData()
 {
     // Gamepad data is polled instead of pushed.
     return false;
 }
 
-PassRefPtr<Event> NavigatorGamepad::getLastEvent()
+PassRefPtrWillBeRawPtr<Event> NavigatorGamepad::getLastEvent()
 {
     // This is called only when hasLastData() is true.
     ASSERT_NOT_REACHED();
     return nullptr;
 }
 
 bool NavigatorGamepad::isNullEvent(Event*)
 {
     // This is called only when hasLastData() is true.
     ASSERT_NOT_REACHED();
@@ skipping 14 matching lines @@
     if (eventType == EventTypeNames::gamepadconnected || eventType == EventTypeNames::gamepaddisconnected)
         m_hasEventListener = false;
 }
 
 void NavigatorGamepad::didRemoveAllEventListeners(DOMWindow*)
 {
     m_hasEventListener = false;
 }
 
 } // namespace WebCore