Element::recalcStyle() overly reattach()-es InsertionPoints.

Source/core/dom/shadow/ContentDistributor.h

 /*
  * Copyright (C) 2011 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 114 matching lines @@
     InsertionPoint* findInsertionPointFor(const Node* key) const;
     const SelectRuleFeatureSet& ensureSelectFeatureSet(ElementShadow*);
 
     void distributeSelectionsTo(InsertionPoint*, const ContentDistribution& pool, Vector<bool>& distributed);
     void distributeNodeChildrenTo(InsertionPoint*, ContainerNode*);
 
     void invalidateDistribution(Element* host);
     void didShadowBoundaryChange(Element* host);
     void didAffectSelector(Element* host, AffectedSelectorMask);
     void willAffectSelector(Element* host);
+    void setNeedsStyleRecalcIfDistributedTo(InsertionPoint*);
 
-    static void ensureDistribution(ShadowRoot*);
+    static void ensureDistribution(Element*);
 
 private:
     void distribute(Element* host);
-    bool invalidate(Element* host);
+    bool invalidate(Element* host, Vector<Node*, 8>& nodesNeedingReattach);
     void populate(Node*, ContentDistribution&);
 
     void collectSelectFeatureSetFrom(ShadowRoot*);
     bool needsSelectFeatureSet() const { return m_needsSelectFeatureSet; }
     void setNeedsSelectFeatureSet() { m_needsSelectFeatureSet = true; }
 
     void setValidity(Validity validity) { m_validity = validity; }
     bool isValid() const { return m_validity == Valid; }
     bool needsDistribution() const;
     bool needsInvalidation() const { return m_validity != Invalidated; }
 
-    HashMap<const Node*, RefPtr<InsertionPoint> > m_nodeToInsertionPoint;
+    typedef HashMap<const Node*, RefPtr<InsertionPoint> > NodeInsertionPointMap;
+    NodeInsertionPointMap m_nodeToInsertionPoint;
     SelectRuleFeatureSet m_selectFeatures;
     unsigned m_needsSelectFeatureSet : 1;
     unsigned m_validity : 2;
 };
 
 inline bool ContentDistributor::needsDistribution() const
 {
     // During the invalidation, re-distribution should be supressed.
     return m_validity != Valid && m_validity != Invalidating;
 }
 
 }
 
 #endif