Get rid of SVGPathSegRole

Source/core/svg/SVGPathSegLinetoHorizontalRel.h

Index: Source/core/svg/SVGPathSegLinetoHorizontalRel.h
diff --git a/Source/core/svg/SVGPathSegLinetoHorizontalRel.h b/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
index 3cf657b15770ee1cc95e2d27c496b34a7d3e00c1..4b43bc5fc6f01a44caecbb3b4acae0bf7ae9773f 100644
--- a/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
+++ b/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
@@ -28,14 +28,14 @@ namespace blink {
 
 class SVGPathSegLinetoHorizontalRel FINAL : public SVGPathSegLinetoHorizontal {
 public:
-    static PassRefPtr<SVGPathSegLinetoHorizontalRel> create(SVGPathElement* element, SVGPathSegRole role, float x)
+    static PassRefPtr<SVGPathSegLinetoHorizontalRel> create(SVGPathElement* element, float x)
     {
-        return adoptRef(new SVGPathSegLinetoHorizontalRel(element, role, x));
+        return adoptRef(new SVGPathSegLinetoHorizontalRel(element, x));
     }
 
 private:
-    SVGPathSegLinetoHorizontalRel(SVGPathElement* element, SVGPathSegRole role, float x)
-        : SVGPathSegLinetoHorizontal(element, role, x)
+    SVGPathSegLinetoHorizontalRel(SVGPathElement* element, float x)
+        : SVGPathSegLinetoHorizontal(element, x)
     {
         ScriptWrappable::init(this);
     }