Implement the Custom Elements :unresolved pseudoclass

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 61 matching lines @@
     public:
         CallbackDeliveryScope() { }
         ~CallbackDeliveryScope() { CustomElementRegistry::deliverAllLifecycleCallbacksIfNeeded(); }
     };
 
     explicit CustomElementRegistry(Document*);
     ~CustomElementRegistry();
 
     PassRefPtr<CustomElementConstructor> registerElement(WebCore::ScriptState*, const AtomicString& name, const Dictionary& options, ExceptionCode&);
 
+    bool isUnresolved(Element*) const;
     PassRefPtr<CustomElementDefinition> findFor(Element*) const;
     PassRefPtr<CustomElementDefinition> findAndCheckNamespace(const AtomicString& type, const AtomicString& namespaceURI) const;
 
     PassRefPtr<Element> createCustomTagElement(const QualifiedName& localName);
 
     Document* document() const;
 
     void didGiveTypeExtension(Element*);
+    void customElementWasDestroyed(Element*);
 
     static bool isCustomTagName(const AtomicString& name) { return isValidName(name); }
 
     static void deliverAllLifecycleCallbacks();
     static void deliverAllLifecycleCallbacksIfNeeded();
 
 private:
     typedef HashMap<AtomicString, RefPtr<CustomElementDefinition> > DefinitionMap;
     typedef HashSet<AtomicString> NameSet;
     typedef ListHashSet<CustomElementRegistry*> InstanceSet;
+    typedef HashSet<Element*> ElementSet;
 
     static bool isValidName(const AtomicString&);
 
     static InstanceSet& activeCustomElementRegistries();
     void activate(const CustomElementInvocation&);
     void deactivate();
     void deliverLifecycleCallbacks();
 
     void didCreateCustomTagElement(Element*);
+    void didCreateUnresolvedElement(Element*);
 
     DefinitionMap m_definitions;
     Vector<CustomElementInvocation> m_invocations;
+    ElementSet m_unresolvedElements;

[dglazkov, 2013/05/02 16:36:28]

So this is the candidates map?

 };
 
 inline void CustomElementRegistry::deliverAllLifecycleCallbacksIfNeeded()
 {
     if (!activeCustomElementRegistries().isEmpty())
         deliverAllLifecycleCallbacks();
     ASSERT(activeCustomElementRegistries().isEmpty());
 }
 
 inline CustomElementRegistry::InstanceSet& CustomElementRegistry::activeCustomElementRegistries()
 {
     DEFINE_STATIC_LOCAL(InstanceSet, activeInstances, ());
     return activeInstances;
 }
 
 
 } // namespace WebCore
 
 #endif