Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLUnknownElement.h

 /*
  * Copyright (c) 2011 Code Aurora Forum. 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
  *       copyright notice, this list of conditions and the following
@@ skipping 18 matching lines @@
 
 #ifndef HTMLUnknownElement_h
 #define HTMLUnknownElement_h
 
 #include "core/html/HTMLElement.h"
 
 namespace WebCore {
 
 class HTMLUnknownElement FINAL : public HTMLElement {
 public:
-    static PassRefPtr<HTMLUnknownElement> create(const QualifiedName& tagName, Document* document)
+    static PassRefPtr<HTMLUnknownElement> create(const QualifiedName& tagName, Document& document)
     {
         return adoptRef(new HTMLUnknownElement(tagName, document));
     }
 
     virtual bool isHTMLUnknownElement() const OVERRIDE { return true; }
 
 private:
-    HTMLUnknownElement(const QualifiedName& tagName, Document* document)
+    HTMLUnknownElement(const QualifiedName& tagName, Document& document)
         : HTMLElement(tagName, document)
     {
         ScriptWrappable::init(this);
     }
 };
 
 inline HTMLUnknownElement* toHTMLUnknownElement(HTMLElement* element)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!element || element->isHTMLUnknownElement());
     return static_cast<HTMLUnknownElement*>(element);
 }
 
 } // namespace
 
 #endif