Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/svg/SVGFontFaceElement.h

Index: Source/core/svg/SVGFontFaceElement.h
diff --git a/Source/core/svg/SVGFontFaceElement.h b/Source/core/svg/SVGFontFaceElement.h
index 086a79340b91f622ebf7c68e2538949226816fc7..c7998c3ff40669e223a14e19f6729f98faceba95 100644
--- a/Source/core/svg/SVGFontFaceElement.h
+++ b/Source/core/svg/SVGFontFaceElement.h
@@ -33,7 +33,7 @@ class StyleRuleFontFace;
 
 class SVGFontFaceElement FINAL : public SVGElement {
 public:
-    static PassRefPtr<SVGFontFaceElement> create(const QualifiedName&, Document*);
+    static PassRefPtr<SVGFontFaceElement> create(const QualifiedName&, Document&);
 
     unsigned unitsPerEm() const;
     int xHeight() const;
@@ -53,7 +53,7 @@ public:
     StyleRuleFontFace* fontFaceRule() const { return m_fontFaceRule.get(); }
 
 private:
-    SVGFontFaceElement(const QualifiedName&, Document*);
+    SVGFontFaceElement(const QualifiedName&, Document&);
 
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;