Remove ENABLE_CUSTOM_ELEMENTS compile time flag

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index dde5914d388dfd696229b72d657da8ffa420e99a..07bb76981651b8f5c463ca4ef27a5c2469d07397 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -1099,14 +1099,12 @@ public:
 
     TextAutosizer* textAutosizer() { return m_textAutosizer.get(); }
 
-#if ENABLE(CUSTOM_ELEMENTS)
     PassRefPtr<Element> createElement(const AtomicString& localName, const AtomicString& typeExtension, ExceptionCode&);
     PassRefPtr<Element> createElementNS(const AtomicString& namespaceURI, const String& qualifiedName, const AtomicString& typeExtension, ExceptionCode&);
     PassRefPtr<CustomElementConstructor> registerElement(WebCore::ScriptState*, const AtomicString& name, ExceptionCode&);
     PassRefPtr<CustomElementConstructor> registerElement(WebCore::ScriptState*, const AtomicString& name, const Dictionary& options, ExceptionCode&);
     CustomElementRegistry* registry() const { return m_registry.get(); }
     void didCreateCustomElement(Element*, CustomElementConstructor*);
-#endif
 
     void adjustFloatQuadsForScrollAndAbsoluteZoom(Vector<FloatQuad>&, RenderObject*);
     void adjustFloatRectForScrollAndAbsoluteZoom(FloatRect&, RenderObject*);
@@ -1474,9 +1472,7 @@ private:
 
     OwnPtr<TextAutosizer> m_textAutosizer;
 
-#if ENABLE(CUSTOM_ELEMENTS)
     RefPtr<CustomElementRegistry> m_registry;
-#endif
 
     bool m_scheduledTasksAreSuspended;