Remove HTMLShadowElement.

sky/engine/core/dom/shadow/ShadowRootRareData.h

 /*
  * Copyright (C) 2013 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 22 matching lines @@
 
 #include "core/dom/shadow/InsertionPoint.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class ShadowRootRareData {
 public:
     ShadowRootRareData()
-        : m_descendantShadowElementCount(0)
-        , m_descendantContentElementCount(0)
+        : m_descendantContentElementCount(0)
         , m_childShadowRootCount(0)
     {
     }
 
-    HTMLShadowElement* shadowInsertionPointOfYoungerShadowRoot() const { return m_shadowInsertionPointOfYoungerShadowRoot.get(); }
-    void setShadowInsertionPointOfYoungerShadowRoot(PassRefPtr<HTMLShadowElement> shadowInsertionPoint) { m_shadowInsertionPointOfYoungerShadowRoot = shadowInsertionPoint; }
-
     void didAddInsertionPoint(InsertionPoint*);
     void didRemoveInsertionPoint(InsertionPoint*);
 
-    bool containsShadowElements() const { return m_descendantShadowElementCount; }
     bool containsContentElements() const { return m_descendantContentElementCount; }
     bool containsShadowRoots() const { return m_childShadowRootCount; }
 
-    unsigned descendantShadowElementCount() const { return m_descendantShadowElementCount; }
-
     void didAddChildShadowRoot() { ++m_childShadowRootCount; }
     void didRemoveChildShadowRoot() { ASSERT(m_childShadowRootCount > 0); --m_childShadowRootCount; }
 
     unsigned childShadowRootCount() const { return m_childShadowRootCount; }
 
     const Vector<RefPtr<InsertionPoint> >& descendantInsertionPoints() { return m_descendantInsertionPoints; }
     void setDescendantInsertionPoints(Vector<RefPtr<InsertionPoint> >& list) { m_descendantInsertionPoints.swap(list); }
     void clearDescendantInsertionPoints() { m_descendantInsertionPoints.clear(); }
 
     StyleSheetList* styleSheets() { return m_styleSheetList.get(); }
     void setStyleSheets(PassRefPtr<StyleSheetList> styleSheetList) { m_styleSheetList = styleSheetList; }
 
-    void trace(Visitor* visitor)
-    {
-        visitor->trace(m_shadowInsertionPointOfYoungerShadowRoot);
-        visitor->trace(m_descendantInsertionPoints);
-        visitor->trace(m_styleSheetList);
-    }
 
 private:
-    RefPtr<HTMLShadowElement> m_shadowInsertionPointOfYoungerShadowRoot;
-    unsigned m_descendantShadowElementCount;
     unsigned m_descendantContentElementCount;
     unsigned m_childShadowRootCount;
     Vector<RefPtr<InsertionPoint> > m_descendantInsertionPoints;
     RefPtr<StyleSheetList> m_styleSheetList;
 };
 
 inline void ShadowRootRareData::didAddInsertionPoint(InsertionPoint* point)
 {
     ASSERT(point);
-    if (isHTMLShadowElement(*point))
-        ++m_descendantShadowElementCount;
-    else if (isHTMLContentElement(*point))
+    if (isHTMLContentElement(*point))
         ++m_descendantContentElementCount;
     else
         ASSERT_NOT_REACHED();
 }
 
 inline void ShadowRootRareData::didRemoveInsertionPoint(InsertionPoint* point)
 {
     ASSERT(point);
-    if (isHTMLShadowElement(*point))
-        --m_descendantShadowElementCount;
-    else if (isHTMLContentElement(*point))
+    if (isHTMLContentElement(*point))
         --m_descendantContentElementCount;
     else
         ASSERT_NOT_REACHED();
 
     ASSERT(m_descendantContentElementCount >= 0);
-    ASSERT(m_descendantShadowElementCount >= 0);
 }
 
 } // namespace blink
 
 #endif