Schedule sibling invalidation sets for sibling insert/remove.

third_party/WebKit/Source/core/dom/ContainerNode.h

 /*
  * 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, 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 141 matching lines @@
     void setAffectedByFirstChildRules() { setRestyleFlag(AffectedByFirstChildRules); }
 
     bool affectedByLastChildRules() const { return hasRestyleFlag(AffectedByLastChildRules); }
     void setAffectedByLastChildRules() { setRestyleFlag(AffectedByLastChildRules); }
 
     bool needsAdjacentStyleRecalc() const;
 
     // FIXME: These methods should all be renamed to something better than "check",
     // since it's not clear that they alter the style bits of siblings and children.
     enum SiblingCheckType { FinishedParsingChildren, SiblingElementInserted, SiblingElementRemoved };
-    void checkForSiblingStyleChanges(SiblingCheckType, Node* nodeBeforeChange, Node* nodeAfterChange);
+    void checkForSiblingStyleChanges(SiblingCheckType, Node* changedNode, Node* nodeBeforeChange, Node* nodeAfterChange);
     void recalcChildStyle(StyleRecalcChange);
 
     bool childrenSupportStyleSharing() const { return !hasRestyleFlags(); }
 
     // -----------------------------------------------------------------------------
     // Notification of document structure changes (see core/dom/Node.h for more notification methods)
 
     enum ChildrenChangeType { ElementInserted, NonElementInserted, ElementRemoved, NonElementRemoved, AllChildrenRemoved, TextChanged };
     enum ChildrenChangeSource { ChildrenChangeSourceAPI, ChildrenChangeSourceParser };
     struct ChildrenChange {
         STACK_ALLOCATED();
     public:
         static ChildrenChange forInsertion(Node& node, ChildrenChangeSource byParser)
         {
             ChildrenChange change = {
                 node.isElementNode() ? ElementInserted : NonElementInserted,
+                &node,
                 node.previousSibling(),
                 node.nextSibling(),
                 byParser
             };
             return change;
         }
 
         static ChildrenChange forRemoval(Node& node, Node* previousSibling, Node* nextSibling, ChildrenChangeSource byParser)
         {
             ChildrenChange change = {
                 node.isElementNode() ? ElementRemoved : NonElementRemoved,
+                &node,
                 previousSibling,
                 nextSibling,
                 byParser
             };
             return change;
         }
 
         bool isChildInsertion() const { return type == ElementInserted || type == NonElementInserted; }
         bool isChildRemoval() const { return type == ElementRemoved || type == NonElementRemoved; }
         bool isChildElementChange() const { return type == ElementInserted || type == ElementRemoved; }
 
         ChildrenChangeType type;
+        Member<Node> siblingChanged;
         Member<Node> siblingBeforeChange;
         Member<Node> siblingAfterChange;
         ChildrenChangeSource byParser;
     };
 
     // Notifies the node that it's list of children have changed (either by adding or removing child nodes), or a child
     // node that is of the type CDATA_SECTION_NODE, TEXT_NODE or COMMENT_NODE has changed its value.
     virtual void childrenChanged(const ChildrenChange&);
 
     DECLARE_VIRTUAL_TRACE();
@@ skipping 124 matching lines @@
 inline void getChildNodes(ContainerNode& node, NodeVector& nodes)
 {
     DCHECK(!nodes.size());
     for (Node* child = node.firstChild(); child; child = child->nextSibling())
         nodes.append(child);
 }
 
 } // namespace blink
 
 #endif // ContainerNode_h