Introduce isHTMLHtmlElement and toHTMLHtmlElement

Source/web/WebPageSerializerImpl.cpp

 /*
  * Copyright (C) 2009 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 70 matching lines @@
 #include "DOMUtilitiesPrivate.h"
 #include "HTMLNames.h"
 #include "WebFrameImpl.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentType.h"
 #include "core/dom/Element.h"
 #include "core/editing/markup.h"
 #include "core/html/HTMLAllCollection.h"
 #include "core/html/HTMLElement.h"
 #include "core/html/HTMLFormElement.h"
+#include "core/html/HTMLHtmlElement.h"
 #include "core/html/HTMLMetaElement.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/WebVector.h"
 #include "weborigin/KURL.h"
 #include "wtf/text/TextEncoding.h"
 
 using namespace WebCore;
 
@@ skipping 38 matching lines @@
             String equiv = meta->httpEquiv();
             if (equalIgnoringCase(equiv, "content-type")) {
                 String content = meta->content();
                 if (content.length() && content.contains("charset", false)) {
                     // Find META tag declared charset, we need to skip it when
                     // serializing DOM.
                     param->skipMetaElement = element;
                     *needSkip = true;
                 }
             }
-        } else if (element->hasTagName(HTMLNames::htmlTag)) {
+        } else if (isHTMLHtmlElement(element)) {
             // Check something before processing the open tag of HEAD element.
             // First we add doc type declaration if original document has it.
             if (!param->haveSeenDocType) {
                 param->haveSeenDocType = true;
                 result.append(createMarkup(param->document->doctype()));
             }
 
             // Add MOTW declaration before html tag.
             // See http://msdn2.microsoft.com/en-us/library/ms537628(VS.85).aspx.
             result.append(WebPageSerializer::generateMarkOfTheWebDeclaration(param->url));
@@ skipping 360 matching lines @@
 
         encodeAndFlushBuffer(WebPageSerializerClient::CurrentFrameIsFinished, &param, ForceFlush);
     }
 
     ASSERT(m_dataBuffer.isEmpty());
     m_client->didSerializeDataForFrame(KURL(), WebCString("", 0), WebPageSerializerClient::AllFramesAreFinished);
     return didSerialization;
 }
 
 }  // namespace WebKit