Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLHtmlElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2004, 2006, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 12 matching lines @@
 
 #ifndef HTMLHtmlElement_h
 #define HTMLHtmlElement_h
 
 #include "core/html/HTMLElement.h"
 
 namespace WebCore {
 
 class HTMLHtmlElement FINAL : public HTMLElement {
 public:
-    static PassRefPtr<HTMLHtmlElement> create(Document*);
-    static PassRefPtr<HTMLHtmlElement> create(const QualifiedName&, Document*);
+    static PassRefPtr<HTMLHtmlElement> create(Document&);
+    static PassRefPtr<HTMLHtmlElement> create(const QualifiedName&, Document&);
 
     void insertedByParser();
 
 private:
-    HTMLHtmlElement(const QualifiedName&, Document*);
+    HTMLHtmlElement(const QualifiedName&, Document&);
 
     virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
 };
 
 inline bool isHTMLHtmlElement(const Node* node)
 {
     return node->hasTagName(HTMLNames::htmlTag);
 }
 
 inline bool isHTMLHtmlElement(const Element* element)
 {
     return element->hasTagName(HTMLNames::htmlTag);
 }
 
 inline HTMLHtmlElement* toHTMLHtmlElement(Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLHtmlElement(node));
     return static_cast<HTMLHtmlElement*>(node);
 }
 
 } // namespace
 
 #endif