[oilpan] Handlify childrenChanged.

Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013 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
@@ skipping 616 matching lines @@
 protected:
     Element(const QualifiedName& tagName, Handle<Document> document, ConstructionType type)
         : ContainerNode(document, type)
         , m_tagName(tagName)
     {
         ScriptWrappable::init(this);
     }
 
     virtual InsertionNotificationRequest insertedInto(const Handle<ContainerNode>&) OVERRIDE;
     virtual void removedFrom(const Handle<ContainerNode>&) OVERRIDE;
-    virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
+    virtual void childrenChanged(bool changedByParser = false, const Handle<Node>& beforeChange = nullptr, const Handle<Node>& afterChange = nullptr, int childCountDelta = 0);
     virtual void removeAllEventListeners() OVERRIDE;
 
     virtual bool willRecalcStyle(StyleChange);
     virtual void didRecalcStyle(StyleChange);
     virtual PassRefPtr<RenderStyle> customStyleForRenderer();
 
     virtual bool shouldRegisterAsNamedItem() const { return false; }
     virtual bool shouldRegisterAsExtraNamedItem() const { return false; }
 
     void clearTabIndexExplicitlyIfNeeded();
@@ skipping 391 matching lines @@
 
 inline const Attribute* ElementData::attributeItem(unsigned index) const
 {
     RELEASE_ASSERT(index < length());
     return attributeBase() + index;
 }
 
 } // namespace
 
 #endif