Use more direct Element creation methods

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 695 matching lines @@
 PassRefPtr<Element> Document::createElement(const AtomicString& name, ExceptionState& exceptionState)
 {
     if (!isValidName(name)) {
         exceptionState.throwDOMException(InvalidCharacterError, "The tag name provided ('" + name + "') is not a valid name.");
         return 0;
     }
 
     if (isXHTMLDocument() || isHTMLDocument())
         return HTMLElementFactory::createHTMLElement(isHTMLDocument() ? name.lower() : name, *this, 0, false);
 
-    return createElement(QualifiedName(nullAtom, name, nullAtom), false);
+    return Element::create(QualifiedName(nullAtom, name, nullAtom), this);
 }
 
 PassRefPtr<Element> Document::createElement(const AtomicString& localName, const AtomicString& typeExtension, ExceptionState& exceptionState)
 {
     if (!isValidName(localName)) {
         exceptionState.throwDOMException(InvalidCharacterError, "The tag name provided ('" + localName + "') is not a valid name.");
         return 0;
     }
 
     RefPtr<Element> element;
@@ skipping 603 matching lines @@
 }
 
 void Document::setTitle(const String& title)
 {
     // Title set by JavaScript -- overrides any title elements.
     m_titleSetExplicitly = true;
     if (!isHTMLDocument() && !isXHTMLDocument())
         m_titleElement = 0;
     else if (!m_titleElement) {
         if (HTMLElement* headElement = head()) {
-            m_titleElement = createElement(titleTag, false);
+            m_titleElement = HTMLTitleElement::create(*this);

[Inactive, 2014/02/13 17:26:22]

This no longer updates m_sawElementsInKnownNamespaces. Why isn't this a problem?

             headElement->appendChild(m_titleElement);
         }
     }
 
     if (m_titleElement && m_titleElement->hasTagName(titleTag))
         toHTMLTitleElement(m_titleElement)->setText(title);
     else
         updateTitle(title);
 }
 
@@ skipping 4097 matching lines @@
 void Document::defaultEventHandler(Event* event)
 {
     if (frame() && frame()->remotePlatformLayer()) {
         frame()->chromeClient().forwardInputEvent(this, event);
         return;
     }
     Node::defaultEventHandler(event);
 }
 
 } // namespace WebCore