Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/html/shadow/HTMLContentElement.h

 /*
  * Copyright (C) 2011 Google 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:
  *
  *     * 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
@@ skipping 20 matching lines @@
 #ifndef HTMLContentElement_h
 #define HTMLContentElement_h
 
 #include "core/css/CSSSelectorList.h"
 #include "core/dom/shadow/InsertionPoint.h"
 
 namespace WebCore {
 
 class HTMLContentElement FINAL : public InsertionPoint {
 public:
-    static PassRefPtr<HTMLContentElement> create(const QualifiedName&, Document*);
-    static PassRefPtr<HTMLContentElement> create(Document*);
+    static PassRefPtr<HTMLContentElement> create(const QualifiedName&, Document&);
+    static PassRefPtr<HTMLContentElement> create(Document&);
 
     virtual ~HTMLContentElement();
 
     virtual bool canAffectSelector() const OVERRIDE { return true; }
 
     bool canSelectNode(const Vector<Node*>& siblings, int nth) const;
 
     const CSSSelectorList& selectorList() const;
     bool isSelectValid() const;
 
 private:
-    HTMLContentElement(const QualifiedName&, Document*);
+    HTMLContentElement(const QualifiedName&, Document&);
 
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
 
     bool validateSelect() const;
     void parseSelect();
 
     bool matchSelector(const Vector<Node*>& siblings, int nth) const;
 
     bool m_shouldParseSelect;
     bool m_isValidSelector;
@@ skipping 38 matching lines @@
 
 inline HTMLContentElement* toHTMLContentElement(Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLContentElement(node));
     return static_cast<HTMLContentElement*>(node);
 }
 
 }
 
 #endif