Pow __proto__, sock :unresolved, and clunk the created callback at once.

Source/core/dom/CustomElementRegistry.h

 /*
  * Copyright (C) 2012 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 40 matching lines @@
 void setTypeExtension(Element*, const AtomicString& typeExtension);
 
 class CustomElementRegistry : public RefCounted<CustomElementRegistry>, public ContextLifecycleObserver {
     WTF_MAKE_NONCOPYABLE(CustomElementRegistry); WTF_MAKE_FAST_ALLOCATED;
 public:
     explicit CustomElementRegistry(Document*);
     virtual ~CustomElementRegistry() { }
 
     void registerElement(CustomElementConstructorBuilder*, const AtomicString& name, ExceptionCode&);
 
-    bool isUnresolved(Element*) const;
     PassRefPtr<CustomElementDefinition> findFor(Element*) const;
 
     PassRefPtr<Element> createCustomTagElement(const QualifiedName& localName);
 
     Document* document() const;
 
     void didGiveTypeExtension(Element*, const AtomicString&);
     void customElementWasDestroyed(Element*);
 
     static bool isCustomTagName(const AtomicString& name) { return isValidName(name); }
 
 private:
     typedef HashMap<AtomicString, RefPtr<CustomElementDefinition> > DefinitionMap;
     static bool isValidName(const AtomicString&);
 
     PassRefPtr<CustomElementDefinition> findAndCheckNamespace(const AtomicString& type, const AtomicString& namespaceURI) const;
 
     void didCreateCustomTagElement(CustomElementDefinition*, Element*);
     void didCreateUnresolvedElement(CustomElementDefinition::CustomElementKind, const AtomicString& type, Element*);
 
     DefinitionMap m_definitions;
     CustomElementUpgradeCandidateMap m_candidates;
 };
 
 } // namespace WebCore
 
 #endif