[SVG] SVGLength{,List} migration to new SVG property impl.

Source/core/rendering/svg/RenderSVGEllipse.cpp

Index: Source/core/rendering/svg/RenderSVGEllipse.cpp
diff --git a/Source/core/rendering/svg/RenderSVGEllipse.cpp b/Source/core/rendering/svg/RenderSVGEllipse.cpp
index ac5c6491fc314156927d961fe3caaa385ef632e8..1b09e252098d68f22edb2d099988b92c0b247811 100644
--- a/Source/core/rendering/svg/RenderSVGEllipse.cpp
+++ b/Source/core/rendering/svg/RenderSVGEllipse.cpp
@@ -80,17 +80,17 @@ void RenderSVGEllipse::calculateRadiiAndCenter()
         SVGCircleElement* circle = toSVGCircleElement(element());
 
         SVGLengthContext lengthContext(circle);
-        float radius = circle->rCurrentValue().value(lengthContext);
+        float radius = circle->r()->currentValue()->value(lengthContext);
         m_radii = FloatSize(radius, radius);
-        m_center = FloatPoint(circle->cxCurrentValue().value(lengthContext), circle->cyCurrentValue().value(lengthContext));
+        m_center = FloatPoint(circle->cx()->currentValue()->value(lengthContext), circle->cy()->currentValue()->value(lengthContext));
         return;
     }
 
     SVGEllipseElement* ellipse = toSVGEllipseElement(element());
 
     SVGLengthContext lengthContext(ellipse);
-    m_radii = FloatSize(ellipse->rxCurrentValue().value(lengthContext), ellipse->ryCurrentValue().value(lengthContext));
-    m_center = FloatPoint(ellipse->cxCurrentValue().value(lengthContext), ellipse->cyCurrentValue().value(lengthContext));
+    m_radii = FloatSize(ellipse->rx()->currentValue()->value(lengthContext), ellipse->ry()->currentValue()->value(lengthContext));
+    m_center = FloatPoint(ellipse->cx()->currentValue()->value(lengthContext), ellipse->cy()->currentValue()->value(lengthContext));
 }
 
 void RenderSVGEllipse::fillShape(GraphicsContext* context) const