[oilpan] Handlify childrenChanged.

Source/core/html/shadow/InsertionPoint.cpp

 /*
  * Copyright (C) 2012 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 101 matching lines @@
         nodes.append(m_distribution.at(i));
 
     return StaticNodeList::adopt(nodes);
 }
 
 bool InsertionPoint::rendererIsNeeded(const NodeRenderingContext& context)
 {
     return !isShadowBoundary() && HTMLElement::rendererIsNeeded(context);
 }
 
-void InsertionPoint::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+void InsertionPoint::childrenChanged(bool changedByParser, const Handle<Node>& beforeChange, const Handle<Node>& afterChange, int childCountDelta)
 {
     HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
     if (Handle<ShadowRoot> root = containingShadowRoot())
         if (ElementShadow* rootOwner = root->owner())
             rootOwner->invalidateDistribution();
 }
 
 Node::InsertionNotificationRequest InsertionPoint::insertedInto(const Handle<ContainerNode>& insertionPoint)
 {
     HTMLElement::insertedInto(insertionPoint);
@@ skipping 122 matching lines @@
         return;
     }
 }
 
 void InsertionPoint::accept(Visitor* visitor) const
 {
     HTMLElement::accept(visitor);
 }
 
 } // namespace WebCore