Oilpan: Move the EventListener hierarchy to Oilpan's heap

Source/modules/serviceworkers/ServiceWorkerGlobalScope.h

 /*
  * Copyright (C) 2013 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
@@ skipping 61 matching lines @@
 
     ScriptPromise fetch(ScriptState*, const RequestInfo&, const Dictionary&, ExceptionState&);
 
     void close(ExceptionState&);
 
     ScriptPromise skipWaiting(ScriptState*);
 
     void setRegistration(WebServiceWorkerRegistration*);
 
     // EventTarget
-    bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
+    bool addEventListener(const AtomicString& eventType, PassRefPtrWillBeRawPtr<EventListener>, bool useCapture = false) override;
     const AtomicString& interfaceName() const override;
     bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override;
 
     void dispatchExtendableEvent(PassRefPtrWillBeRawPtr<Event>, WaitUntilObserver*);
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(install);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(activate);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(fetch);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(sync);
@@ skipping 18 matching lines @@
     size_t m_scriptCount;
     size_t m_scriptTotalSize;
     size_t m_scriptCachedMetadataTotalSize;
 };
 
 DEFINE_TYPE_CASTS(ServiceWorkerGlobalScope, ExecutionContext, context, context->isServiceWorkerGlobalScope(), context.isServiceWorkerGlobalScope());
 
 } // namespace blink
 
 #endif // ServiceWorkerGlobalScope_h