Remove style element counting in ShadowRoot.

sky/engine/core/dom/shadow/ShadowRoot.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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 44 matching lines @@
     // Disambiguate between Node and TreeScope hierarchies; TreeScope's implementation is simpler.
     using TreeScope::document;
     using TreeScope::getElementById;
 
     Element* host() const { return toElement(parentOrShadowHostNode()); }
     ElementShadow* owner() const { return host() ? host()->shadow() : 0; }
 
     virtual void insertedInto(ContainerNode*) override;
     virtual void removedFrom(ContainerNode*) override;
 
-    void registerScopedHTMLStyleChild();
-    void unregisterScopedHTMLStyleChild();
-
     bool containsContentElements() const;
     bool containsInsertionPoints() const { return containsContentElements(); }
     bool containsShadowRoots() const;
 
     // For Internals, don't use this.
     unsigned childShadowRootCount() const;
-    unsigned numberOfStyles() const { return m_numberOfStyles; }
 
     void didAddInsertionPoint(InsertionPoint*);
     void didRemoveInsertionPoint(InsertionPoint*);
     const Vector<RefPtr<InsertionPoint> >& descendantInsertionPoints();
 
     // Make protected methods from base class public here.
     using TreeScope::setDocument;
     using TreeScope::setParentTreeScope;
 
 public:
@@ skipping 13 matching lines @@
     ShadowRootRareData* ensureShadowRootRareData();
 
     void addChildShadowRoot();
     void removeChildShadowRoot();
     void invalidateDescendantInsertionPoints();
 
     // ShadowRoots should never be cloned.
     virtual PassRefPtr<Node> cloneNode(bool) override { return nullptr; }
 
     OwnPtr<ShadowRootRareData> m_shadowRootRareData;
-    unsigned m_numberOfStyles : 27;
     unsigned m_registeredWithParentShadowRoot : 1;
     unsigned m_descendantInsertionPointsIsValid : 1;
 };
 
 inline Element* ShadowRoot::activeElement() const
 {
     return adjustedFocusedElement();
 }
 
 DEFINE_NODE_TYPE_CASTS(ShadowRoot, isShadowRoot());
 DEFINE_TYPE_CASTS(ShadowRoot, TreeScope, treeScope, treeScope->rootNode().isShadowRoot(), treeScope.rootNode().isShadowRoot());
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_DOM_SHADOW_SHADOWROOT_H_