Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLMetaElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 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 11 matching lines @@
 
 #ifndef HTMLMetaElement_h
 #define HTMLMetaElement_h
 
 #include "core/html/HTMLElement.h"
 
 namespace WebCore {
 
 class HTMLMetaElement FINAL : public HTMLElement {
 public:
-    static PassRefPtr<HTMLMetaElement> create(Document*);
-    static PassRefPtr<HTMLMetaElement> create(const QualifiedName&, Document*);
+    static PassRefPtr<HTMLMetaElement> create(Document&);
+    static PassRefPtr<HTMLMetaElement> create(const QualifiedName&, Document&);
 
     String content() const;
     String httpEquiv() const;
     String name() const;
 
 private:
-    HTMLMetaElement(const QualifiedName&, Document*);
+    HTMLMetaElement(const QualifiedName&, Document&);
 
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
 
     void process();
 };
 
 } //namespace
 
 #endif