Create wrappers for unresolved Custom Elements at the correct type

Source/core/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 1047 matching lines @@
 
     Prerenderer* prerenderer() { return m_prerenderer.get(); }
 
     TextAutosizer* textAutosizer() { return m_textAutosizer.get(); }
 
     PassRefPtr<Element> createElement(const AtomicString& localName, const AtomicString& typeExtension, ExceptionCode&);
     PassRefPtr<Element> createElementNS(const AtomicString& namespaceURI, const String& qualifiedName, const AtomicString& typeExtension, ExceptionCode&);
     PassRefPtr<CustomElementConstructor> registerElement(WebCore::ScriptState*, const AtomicString& name, ExceptionCode&);
     PassRefPtr<CustomElementConstructor> registerElement(WebCore::ScriptState*, const AtomicString& name, const Dictionary& options, ExceptionCode&);
     CustomElementRegistry* registry() const { return m_registry.get(); }
+    CustomElementRegistry* ensureCustomElementRegistry();
 
     void adjustFloatQuadsForScrollAndAbsoluteZoom(Vector<FloatQuad>&, RenderObject*);
     void adjustFloatRectForScrollAndAbsoluteZoom(FloatRect&, RenderObject*);
 
     bool hasActiveParser();
     unsigned activeParserCount() { return m_activeParserCount; }
     void incrementActiveParserCount() { ++m_activeParserCount; }
     void decrementActiveParserCount();
 
     void setContextFeatures(PassRefPtr<ContextFeatures>);
@@ skipping 430 matching lines @@
     trackForDebugging();
 #endif
     InspectorCounters::incrementCounter(InspectorCounters::NodeCounter);
 }
 
 Node* eventTargetNodeForDocument(Document*);
 
 } // namespace WebCore
 
 #endif // Document_h