Remove ENABLE_CUSTOM_ELEMENTS compile time flag

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 607 matching lines @@
     m_activeElement = 0;
     m_titleElement = 0;
     m_documentElement = 0;
     m_contextFeatures = ContextFeatures::defaultSwitch();
     m_userActionElements.documentDidRemoveLastRef();
     m_fullScreenElement = 0;
     m_fullScreenElementStack.clear();
 
     detachParser();
 
-#if ENABLE(CUSTOM_ELEMENTS)
     m_registry.clear();
-#endif
 
     // removeDetachedChildren() doesn't always unregister IDs,
     // so tear down scope information upfront to avoid having stale references in the map.
     destroyTreeScopeData();
     removeDetachedChildren();
 
     m_markers->detach();
 
     m_cssCanvasElements.clear();
 
@@ skipping 131 matching lines @@
         ec = INVALID_CHARACTER_ERR;
         return 0;
     }
 
     if (m_isXHTML)
         return HTMLElementFactory::createHTMLElement(QualifiedName(nullAtom, name, xhtmlNamespaceURI), this, 0, false);
 
     return createElement(QualifiedName(nullAtom, name, nullAtom), false);
 }
 
-#if ENABLE(CUSTOM_ELEMENTS)
 PassRefPtr<Element> Document::createElement(const AtomicString& localName, const AtomicString& typeExtension, ExceptionCode& ec)
 {
     if (!isValidName(localName)) {
         ec = INVALID_CHARACTER_ERR;
         return 0;
     }
 
     if (m_registry) {
         if (PassRefPtr<Element> created = m_registry->createElement(QualifiedName(nullAtom, localName, xhtmlNamespaceURI), typeExtension))
             return created;
@@ skipping 38 matching lines @@
         m_registry = adoptRef(new CustomElementRegistry(this));
     return m_registry->registerElement(state, name, options, ec);
 }
 
 void Document::didCreateCustomElement(Element* element, CustomElementConstructor* constructor)
 {
     // m_registry is cleared Document::dispose() and can be null here.
     if (m_registry)
         m_registry->didCreateElement(element);
 }
-#endif // ENABLE(CUSTOM_ELEMENTS)
 
 PassRefPtr<DocumentFragment> Document::createDocumentFragment()
 {
     return DocumentFragment::create(document());
 }
 
 PassRefPtr<Text> Document::createTextNode(const String& data)
 {
     return Text::create(this, data);
 }
@@ skipping 4940 matching lines @@
         return;
 
     Vector<RefPtr<Element> > associatedFormControls;
     copyToVector(m_associatedFormControls, associatedFormControls);
 
     frame()->page()->chrome()->client()->didAssociateFormControls(associatedFormControls);
     m_associatedFormControls.clear();
 }
 
 } // namespace WebCore