[oilpan] Handlify childrenChanged.

Source/core/html/HTMLTitleElement.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) 2003, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 44 matching lines @@
     return InsertionDone;
 }
 
 void HTMLTitleElement::removedFrom(const Handle<ContainerNode>& insertionPoint)
 {
     HTMLElement::removedFrom(insertionPoint);
     if (insertionPoint->inDocument() && !insertionPoint->isInShadowTree())
         document()->removeTitle(this);
 }
 
-void HTMLTitleElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+void HTMLTitleElement::childrenChanged(bool changedByParser, const Handle<Node>& beforeChange, const Handle<Node>& afterChange, int childCountDelta)
 {
     HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
     m_title = textWithDirection();
     if (inDocument()) {
         if (!isInShadowTree())
             document()->setTitleElement(m_title, this);
         else
             document()->removeTitle(this);
     }
 }
@@ skipping 40 matching lines @@
         appendChild(document()->createTextNode(valueCopy.impl()), IGNORE_EXCEPTION);
     }
 }
 
 void HTMLTitleElement::accept(Visitor* visitor) const
 {
     HTMLElement::accept(visitor);
 }
 
 }