Implement the Custom Elements :unresolved pseudoclass

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 195 matching lines @@
     }
 #endif
 
     if (hasRareData()) {
         ElementRareData* data = elementRareData();
         data->setPseudoElement(BEFORE, 0);
         data->setPseudoElement(AFTER, 0);
         data->clearShadow();
     }
 
+    if (isCustomElement() && document() && document()->registry()) {
+        document()->registry()->customElementWasDestroyed(this);
+    }
+
     if (hasSyntheticAttrChildNodes())
         detachAllAttrNodesFromElement();
 
 #if ENABLE(SVG)
     if (hasPendingResources()) {
         document()->accessSVGExtensions()->removeElementFromPendingResources(this);
         ASSERT(!hasPendingResources());
     }
 #endif
 }
@@ skipping 1969 matching lines @@
 void Element::setIsInCanvasSubtree(bool isInCanvasSubtree)
 {
     ensureElementRareData()->setIsInCanvasSubtree(isInCanvasSubtree);
 }
 
 bool Element::isInCanvasSubtree() const
 {
     return hasRareData() && elementRareData()->isInCanvasSubtree();
 }
 
+bool Element::isUnresolvedCustomElement()
+{
+    return isCustomElement() && document()->registry()->isUnresolved(this);
+}
+
 AtomicString Element::computeInheritedLanguage() const
 {
     const Node* n = this;
     AtomicString value;
     // The language property is inherited, so we iterate over the parents to find the first language.
     do {
         if (n->isElementNode()) {
             if (const ElementData* elementData = toElement(n)->elementData()) {
                 // Spec: xml:lang takes precedence -- http://www.w3.org/TR/xhtml1/#C_7
                 if (const Attribute* attribute = elementData->getAttributeItem(XMLNames::langAttr))
@@ skipping 898 matching lines @@
     return 0;
 }
 
 Attribute* UniqueElementData::attributeItem(unsigned index)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(index < length());
     return &m_attributeVector.at(index);
 }
 
 } // namespace WebCore