Remove custom element type extensions.

sky/engine/core/dom/custom/CustomElementRegistry.cpp

 /*
  * 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 @@
     if (!constructorBuilder->isFeatureAllowed()) {
         CustomElementException::throwException(CustomElementException::CannotRegisterFromExtension, type, exceptionState);
         return 0;
     }
 
     if (!CustomElement::isValidName(type, validNames)) {
         CustomElementException::throwException(CustomElementException::InvalidName, type, exceptionState);
         return 0;
     }
 
-    if (m_registeredTypeNames.contains(type)) {
+    if (m_definitions.contains(type)) {
         CustomElementException::throwException(CustomElementException::TypeAlreadyRegistered, type, exceptionState);
         return 0;
     }
 
     QualifiedName tagName = nullName;
     if (!constructorBuilder->validateOptions(type, tagName, exceptionState))
         return 0;
 
     ASSERT(!observer.registrationContextWentAway());
 
     RefPtr<CustomElementLifecycleCallbacks> lifecycleCallbacks = constructorBuilder->createCallbacks();
 
     // Consulting the constructor builder could execute script and
     // kill the document.
     if (observer.registrationContextWentAway()) {
         CustomElementException::throwException(CustomElementException::ContextDestroyedCreatingCallbacks, type, exceptionState);
         return 0;
     }
 
-    const CustomElementDescriptor descriptor(type, tagName.localName());
+    const CustomElementDescriptor descriptor(tagName.localName());
     RefPtr<CustomElementDefinition> definition = CustomElementDefinition::create(descriptor, lifecycleCallbacks);
 
     if (!constructorBuilder->createConstructor(document, definition.get(), exceptionState))
         return 0;
 
     m_definitions.add(descriptor, definition);
-    m_registeredTypeNames.add(descriptor.type());
 
     if (!constructorBuilder->didRegisterDefinition(definition.get())) {
         CustomElementException::throwException(CustomElementException::ContextDestroyedRegisteringDefinition, type, exceptionState);
         return 0;
     }
 
     return definition.get();
 }
 
 CustomElementDefinition* CustomElementRegistry::find(const CustomElementDescriptor& descriptor) const
 {
     return m_definitions.get(descriptor);
 }
 
 } // namespace blink