Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/HTMLSourceElement.h

 /*
  * Copyright (C) 2007, 2008, 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #ifndef HTMLSourceElement_h
 #define HTMLSourceElement_h
 
 #include "core/html/HTMLElement.h"
 #include "core/platform/Timer.h"
 
 namespace WebCore {
 
 class HTMLSourceElement FINAL : public HTMLElement {
 public:
-    static PassRefPtr<HTMLSourceElement> create(Document* document) { return create(HTMLNames::sourceTag, document); }
-    static PassRefPtr<HTMLSourceElement> create(const QualifiedName&, Document*);
+    static PassRefPtr<HTMLSourceElement> create(Document& document) { return create(HTMLNames::sourceTag, document); }
+    static PassRefPtr<HTMLSourceElement> create(const QualifiedName&, Document&);
 
     String media() const;
     String type() const;
     void setSrc(const String&);
     void setMedia(const String&);
     void setType(const String&);
 
     void scheduleErrorEvent();
     void cancelPendingErrorEvent();
 
 private:
-    HTMLSourceElement(const QualifiedName&, Document*);
+    HTMLSourceElement(const QualifiedName&, Document&);
 
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     virtual void removedFrom(ContainerNode*) OVERRIDE;
     virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
 
     void errorEventTimerFired(Timer<HTMLSourceElement>*);
 
     Timer<HTMLSourceElement> m_errorEventTimer;
 };
 
 inline HTMLSourceElement* toHTMLSourceElement(Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(HTMLNames::sourceTag));
     return static_cast<HTMLSourceElement*>(node);
 }
 
 } // namespace WebCore
 
 #endif