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

Source/bindings/v8/CustomElementConstructorBuilder.cpp

 /*
  * 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 200 matching lines @@
     }
 
     if (m_prototype->GetPropertyAttributes(v8String("constructor", m_context->GetIsolate())) & v8::DontDelete) {
         // "constructor" is not configurable.
         return false;
     }
 
     return true;
 }
 
-bool CustomElementConstructorBuilder::didRegisterDefinition(CustomElementDefinition* definition, const HashSet<Element*>& upgradeCandidates) const
+bool CustomElementConstructorBuilder::didRegisterDefinition(CustomElementDefinition* definition) const
 {
     ASSERT(!m_constructor.IsEmpty());
 
     V8PerContextData* perContextData = V8PerContextData::from(m_context);
     if (!perContextData)
         return false;
 
     // Bindings retrieve the prototype when needed from per-context data.
     v8::Persistent<v8::Object> persistentPrototype(m_context->GetIsolate(), m_prototype);
     perContextData->customElementPrototypes()->add(definition->type(), UnsafePersistent<v8::Object>(persistentPrototype));
 
-    // Upgrade any wrappers alcreated created for this definition
-    for (HashSet<Element*>::const_iterator it = upgradeCandidates.begin(); it != upgradeCandidates.end(); ++it) {
-        v8::Handle<v8::Object> wrapper = DOMDataStore::getWrapperForMainWorld(*it);
-        if (wrapper.IsEmpty()) {
-            // The wrapper will be created with the right prototype when
-            // retrieved; we don't need to eagerly create the wrapper.
-            continue;
-        }
-        wrapper->SetPrototype(m_prototype);
-    }
-
     return true;
 }
 
 ScriptValue CustomElementConstructorBuilder::bindingsReturnValue() const
 {
     return ScriptValue(m_constructor);
 }
 
 bool CustomElementConstructorBuilder::hasValidPrototypeChainFor(V8PerContextData* perContextData, WrapperTypeInfo* typeInfo) const
 {
@@ skipping 38 matching lines @@
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
     RefPtr<Element> element = document->createElementNS(namespaceURI, name, maybeType->IsNull() ? nullAtom : type, ec);
     if (ec) {
         setDOMException(ec, isolate);
         return;
     }
     v8SetReturnValue(args, toV8Fast(element.release(), args, document));
 }
 
 } // namespace WebCore