[svg2] Make 'x' and 'y' presentation attributes

Source/core/layout/svg/LayoutSVGRect.cpp

Index: Source/core/layout/svg/LayoutSVGRect.cpp
diff --git a/Source/core/layout/svg/LayoutSVGRect.cpp b/Source/core/layout/svg/LayoutSVGRect.cpp
index b0c2ee717715973ebba9dc0485ce4c3116ccba86..c41e28d6e5bbad496ffdbdb7166209ea8e06a85c 100644
--- a/Source/core/layout/svg/LayoutSVGRect.cpp
+++ b/Source/core/layout/svg/LayoutSVGRect.cpp
@@ -74,7 +74,11 @@ void LayoutSVGRect::updateShapeFromElement()
         }
     }
 
-    m_fillBoundingBox = FloatRect(FloatPoint(rect->x()->currentValue()->value(lengthContext), rect->y()->currentValue()->value(lengthContext)), boundingBoxSize);
+    m_fillBoundingBox = FloatRect(
+        FloatPoint(
+            lengthContext.valueForLength(style()->svgStyle().x(), LengthModeWidth),
+            lengthContext.valueForLength(style()->svgStyle().y(), LengthModeHeight)),
+        boundingBoxSize);
 
     // To decide if the stroke contains a point we create two rects which represent the inner and
     // the outer stroke borders. A stroke contains the point, if the point is between them.