Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/svg/SVGAElement.h

Index: Source/core/svg/SVGAElement.h
diff --git a/Source/core/svg/SVGAElement.h b/Source/core/svg/SVGAElement.h
index 8fa4b67ee6bef76699084efd361b5070741d782d..0ed00ca44386971138df2890651afadeb2bdcc1e 100644
--- a/Source/core/svg/SVGAElement.h
+++ b/Source/core/svg/SVGAElement.h
@@ -33,10 +33,10 @@ class SVGAElement FINAL : public SVGGraphicsElement,
                           public SVGURIReference,
                           public SVGExternalResourcesRequired {
 public:
-    static PassRefPtr<SVGAElement> create(const QualifiedName&, Document*);
+    static PassRefPtr<SVGAElement> create(const QualifiedName&, Document&);
 
 private:
-    SVGAElement(const QualifiedName&, Document*);
+    SVGAElement(const QualifiedName&, Document&);
 
     virtual bool isValid() const { return SVGTests::isValid(); }