Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/svg/SVGPathElement.h

Index: Source/core/svg/SVGPathElement.h
diff --git a/Source/core/svg/SVGPathElement.h b/Source/core/svg/SVGPathElement.h
index 6e1ea502786c98cf7207fa60066792102bfaad6b..3065a0eda4dcbf5f356d703075afaffe20da18b0 100644
--- a/Source/core/svg/SVGPathElement.h
+++ b/Source/core/svg/SVGPathElement.h
@@ -55,7 +55,7 @@ class SVGPathSegListPropertyTearOff;
 class SVGPathElement FINAL : public SVGGraphicsElement,
                              public SVGExternalResourcesRequired {
 public:
-    static PassRefPtr<SVGPathElement> create(const QualifiedName&, Document*);
+    static PassRefPtr<SVGPathElement> create(const QualifiedName&, Document&);
 
     float getTotalLength();
     SVGPoint getPointAtLength(float distance);
@@ -98,7 +98,7 @@ public:
     bool isAnimValObserved() const { return m_isAnimValObserved; }
 
 private:
-    SVGPathElement(const QualifiedName&, Document*);
+    SVGPathElement(const QualifiedName&, Document&);
 
     virtual bool isValid() const { return SVGTests::isValid(); }
     virtual bool supportsFocus() const OVERRIDE { return hasFocusEventListeners(); }