Remove most of scoped styles.

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index d99a120dacc3f38b6960ce0594e8d816009a3f46..d16352abfcb612e6cff86fc67ea9bb0bf7792dfe 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -2421,28 +2421,6 @@ PassRefPtr<NodeList> Node::getDestinationInsertionPoints()
     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);