V8AbstractEventListener should hold a ScriptState

Source/bindings/v8/V8EventListenerList.cpp

 /*
  * Copyright (C) 2009 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 26 matching lines @@
 
 namespace WebCore {
 
 PassRefPtr<EventListener> V8EventListenerList::getEventListener(ScriptState* scriptState, v8::Local<v8::Value> value, bool isAttribute, ListenerLookupType lookup)
 {
     ASSERT(!scriptState->contextIsEmpty());
     if (lookup == ListenerFindOnly) {
         // Used by EventTarget::removeEventListener, specifically
         // EventTargetV8Internal::removeEventListenerMethod
         ASSERT(!isAttribute);
-        return V8EventListenerList::findWrapper(value, scriptState->isolate());
+        return V8EventListenerList::findWrapper(value, scriptState);
     }
     if (toDOMWindow(scriptState->context()))
-        return V8EventListenerList::findOrCreateWrapper<V8EventListener>(value, isAttribute, scriptState->isolate());
-    return V8EventListenerList::findOrCreateWrapper<V8WorkerGlobalScopeEventListener>(value, isAttribute, scriptState->isolate());
+        return V8EventListenerList::findOrCreateWrapper<V8EventListener>(value, isAttribute, scriptState);
+    return V8EventListenerList::findOrCreateWrapper<V8WorkerGlobalScopeEventListener>(value, isAttribute, scriptState);
 }
 
 } // namespace WebCore