Revert of Remove scoped styles.

Source/core/dom/Node.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 2446 matching lines @@
     WillBeHeapVector<RefPtrWillBeMember<Node> > filteredInsertionPoints;
     for (size_t i = 0; i < insertionPoints.size(); ++i) {
         InsertionPoint* insertionPoint = insertionPoints[i];
         ASSERT(insertionPoint->containingShadowRoot());
         if (insertionPoint->containingShadowRoot()->type() != ShadowRoot::UserAgentShadowRoot)
             filteredInsertionPoints.append(insertionPoint);
     }
     return StaticNodeList::adopt(filteredInsertionPoints);
 }
 
+void Node::registerScopedHTMLStyleChild()
+{
+    setHasScopedHTMLStyleChild(true);
+}
+
+void Node::unregisterScopedHTMLStyleChild()
+{
+    ASSERT(hasScopedHTMLStyleChild());
+    setHasScopedHTMLStyleChild(numberOfScopedHTMLStyleChildren());
+}
+
+size_t Node::numberOfScopedHTMLStyleChildren() const
+{
+    size_t count = 0;
+    for (HTMLStyleElement* style = Traversal<HTMLStyleElement>::firstChild(*this); style; style = Traversal<HTMLStyleElement>::nextSibling(*style)) {
+        if (style->isRegisteredAsScoped())
+            ++count;
+    }
+
+    return count;
+}
+
 void Node::setFocus(bool flag)
 {
     document().userActionElements().setFocused(this, flag);
 }
 
 void Node::setActive(bool flag)
 {
     document().userActionElements().setActive(this, flag);
 }
 
@@ skipping 79 matching lines @@
         node->showTreeForThis();
 }
 
 void showNodePath(const WebCore::Node* node)
 {
     if (node)
         node->showNodePathForThis();
 }
 
 #endif