Refactor ScriptWrappableVisitor.markWrapper(PersistentBase) to be instance method

third_party/WebKit/Source/core/events/EventTarget.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 123 matching lines @@
 DEFINE_TRACE_WRAPPERS(EventTarget)
 {
     EventListenerIterator iterator(const_cast<EventTarget*>(this));
     while (EventListener* listener = iterator.nextListener()) {
         if (listener->type() != EventListener::JSEventListenerType)
             continue;
         V8AbstractEventListener* v8listener = static_cast<V8AbstractEventListener*>(listener);
         if (!v8listener->hasExistingListenerObject())
             continue;
 
-        ScriptWrappableVisitor::markWrapper(
-            &(v8listener->existingListenerObjectPersistentHandle()),
-            v8listener->isolate());
+        visitor->traceWrappers(v8listener);
     }
 }
 
 EventTarget::EventTarget()
 {
 }
 
 EventTarget::~EventTarget()
 {
 }
@@ skipping 487 matching lines @@
     // they have one less listener to invoke.
     if (d->firingEventIterators) {
         for (size_t i = 0; i < d->firingEventIterators->size(); ++i) {
             d->firingEventIterators->at(i).iterator = 0;
             d->firingEventIterators->at(i).end = 0;
         }
     }
 }
 
 } // namespace blink