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

Source/core/dom/CustomElementUpgradeCandidateMap.h

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
  */
 
 #ifndef CustomElementUpgradeCandidateMap_h
 #define CustomElementUpgradeCandidateMap_h
 
 #include "core/dom/CustomElementDefinition.h"
 #include "core/dom/Element.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
 #include "wtf/Noncopyable.h"
+#include "wtf/Vector.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/AtomicStringHash.h"
 
 namespace WebCore {
 
 class CustomElementUpgradeCandidateMap {
     WTF_MAKE_NONCOPYABLE(CustomElementUpgradeCandidateMap);
 public:
     CustomElementUpgradeCandidateMap() { }
 
-    typedef HashSet<Element*> ElementSet;
-
     void add(CustomElementDefinition::CustomElementKind, const AtomicString& type, Element*);
-    bool contains(Element*) const;
     void remove(Element*);
-    ElementSet takeUpgradeCandidatesFor(CustomElementDefinition*);
+    Vector<Element*> takeUpgradeCandidatesFor(CustomElementDefinition*);
 
 private:
     typedef std::pair<CustomElementDefinition::CustomElementKind, AtomicString> RequiredDefinition;
-    typedef HashMap<Element*, RequiredDefinition> UnresolvedElementMap;
+    typedef HashMap<Element*, RequiredDefinition> UpgradeCandidateMap;
+    typedef HashSet<Element*> ElementSet;
     typedef HashMap<AtomicString, ElementSet> UnresolvedDefinitionMap;
 
     bool matches(CustomElementDefinition*, Element*);
 
-    UnresolvedElementMap m_unresolvedElements;
+    UpgradeCandidateMap m_upgradeCandidates;
     UnresolvedDefinitionMap m_unresolvedDefinitions;
 };
 
 }
 
 #endif // CustomElementUpgradeCandidateMap_h