Pass a struct to ContainerNode::childrenChanged() instead of separate arguments

Source/core/dom/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 171 matching lines @@
         nodes.uncheckedAppend(m_distribution.at(i));
 
     return StaticNodeList::adopt(nodes);
 }
 
 bool InsertionPoint::rendererIsNeeded(const RenderStyle& style)
 {
     return !isActive() && HTMLElement::rendererIsNeeded(style);
 }
 
-void InsertionPoint::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+void InsertionPoint::childrenChanged(const ChildrenChange& change)
 {
-    HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
+    HTMLElement::childrenChanged(change);
     if (ShadowRoot* root = containingShadowRoot()) {
         if (ElementShadow* rootOwner = root->owner())
             rootOwner->setNeedsDistributionRecalc();
     }
 }
 
 Node::InsertionNotificationRequest InsertionPoint::insertedInto(ContainerNode* insertionPoint)
 {
     HTMLElement::insertedInto(insertionPoint);
     if (ShadowRoot* root = containingShadowRoot()) {
@@ skipping 81 matching lines @@
         if (!insertionPoints)
             return;
         for (size_t i = 0; i < insertionPoints->size(); ++i)
             results.append(insertionPoints->at(i).get());
         ASSERT(current != insertionPoints->last().get());
         current = insertionPoints->last().get();
     }
 }
 
 } // namespace WebCore