Remove almost all clients of isHTMLElement

sky/engine/core/html/parser/HTMLConstructionSite.h

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 Apple 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 102 matching lines @@
     Document& ownerDocumentForCurrentNode();
     HTMLElementStack* openElements() const { return &m_openElements; }
 
 private:
     // In the common case, this queue will have only one task because most
     // tokens produce only one DOM mutation.
     typedef Vector<HTMLConstructionSiteTask, 1> TaskQueue;
 
     void attachLater(ContainerNode* parent, PassRefPtr<Node> child, bool selfClosing = false);
 
-    PassRefPtr<HTMLElement> createHTMLElement(AtomicHTMLToken*);
-    PassRefPtr<Element> createElement(AtomicHTMLToken*, const AtomicString& namespaceURI);
+    PassRefPtr<Element> createElement(AtomicHTMLToken*);
 
     void queueTask(const HTMLConstructionSiteTask&);
 
     RawPtr<Document> m_document;
 
     // This is the root ContainerNode to which the parser attaches all newly
     // constructed nodes. It points to a DocumentFragment when parsing fragments
     // and a Document in all other cases.
     RawPtr<ContainerNode> m_attachmentRoot;
 
@@ skipping 39 matching lines @@
         RefPtr<Node> nextChild;
         StringBuilder stringBuilder;
     };
 
     PendingText m_pendingText;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_HTML_PARSER_HTMLCONSTRUCTIONSITE_H_