Remove style element counting in ShadowRoot.

sky/engine/core/dom/shadow/ShadowRoot.cpp

 /*
  * 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 32 matching lines @@
 struct SameSizeAsShadowRoot : public DocumentFragment, public TreeScope {
     void* pointers[1];
     unsigned countersAndFlags[1];
 };
 
 COMPILE_ASSERT(sizeof(ShadowRoot) == sizeof(SameSizeAsShadowRoot), shadowroot_should_stay_small);
 
 ShadowRoot::ShadowRoot(Document& document)
     : DocumentFragment(0, CreateShadowRoot)
     , TreeScope(*this, document)
-    , m_numberOfStyles(0)
     , m_registeredWithParentShadowRoot(false)
     , m_descendantInsertionPointsIsValid(false)
 {
 }
 
 ShadowRoot::~ShadowRoot()
 {
     document().styleEngine()->didRemoveShadowRoot(this);
 
     // We cannot let ContainerNode destructor call willBeDeletedFromDocument()
@@ skipping 75 matching lines @@
         if (!root)
             root = insertionPoint->containingShadowRoot();
         if (root)
             root->removeChildShadowRoot();
         m_registeredWithParentShadowRoot = false;
     }
 
     DocumentFragment::removedFrom(insertionPoint);
 }
 
-void ShadowRoot::registerScopedHTMLStyleChild()
-{
-    ++m_numberOfStyles;
-}
-
-void ShadowRoot::unregisterScopedHTMLStyleChild()
-{
-    ASSERT(m_numberOfStyles > 0);
-    --m_numberOfStyles;
-}
-
 ShadowRootRareData* ShadowRoot::ensureShadowRootRareData()
 {
     if (m_shadowRootRareData)
         return m_shadowRootRareData.get();
 
     m_shadowRootRareData = adoptPtr(new ShadowRootRareData);
     return m_shadowRootRareData.get();
 }
 
 bool ShadowRoot::containsContentElements() const
@@ skipping 56 matching lines @@
     Vector<RefPtr<InsertionPoint> > insertionPoints;
     for (InsertionPoint* insertionPoint = Traversal<InsertionPoint>::firstWithin(*this); insertionPoint; insertionPoint = Traversal<InsertionPoint>::next(*insertionPoint, this))
         insertionPoints.append(insertionPoint);
 
     ensureShadowRootRareData()->setDescendantInsertionPoints(insertionPoints);
 
     return m_shadowRootRareData->descendantInsertionPoints();
 }
 
 }