Schedule sibling invalidation sets for sibling insert/remove.

third_party/WebKit/Source/core/dom/Element.cpp

 /*
  * 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)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2073 matching lines @@
     if (!style || (styleAffectedByEmpty() && (!style->emptyState() || hasChildren())))
         pseudoStateChanged(CSSSelector::PseudoEmpty);
 }
 
 void Element::childrenChanged(const ChildrenChange& change)
 {
     ContainerNode::childrenChanged(change);
 
     checkForEmptyStyleChange();
     if (!change.byParser && change.isChildElementChange())
-        checkForSiblingStyleChanges(change.type == ElementRemoved ? SiblingElementRemoved : SiblingElementInserted, change.siblingBeforeChange, change.siblingAfterChange);
+        checkForSiblingStyleChanges(change.type == ElementRemoved ? SiblingElementRemoved : SiblingElementInserted, change.siblingChanged, change.siblingBeforeChange, change.siblingAfterChange);
 
     // TODO(hayato): Confirm that we can skip this if a shadow tree is v1.
     if (ElementShadow* shadow = this->shadow())
         shadow->setNeedsDistributionRecalc();
 }
 
 void Element::finishParsingChildren()
 {
     setIsFinishedParsingChildren(true);
     checkForEmptyStyleChange();
-    checkForSiblingStyleChanges(FinishedParsingChildren, lastChild(), nullptr);
+    checkForSiblingStyleChanges(FinishedParsingChildren, nullptr, lastChild(), nullptr);
 }
 
 #ifndef NDEBUG
 void Element::formatForDebugger(char* buffer, unsigned length) const
 {
     StringBuilder result;
     String s;
 
     result.append(nodeName());
 
@@ skipping 1606 matching lines @@
 
 DEFINE_TRACE_WRAPPERS(Element)
 {
     if (hasRareData()) {
         visitor->traceWrappers(elementRareData());
     }
     ContainerNode::traceWrappers(visitor);
 }
 
 } // namespace blink