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

Source/core/layout/svg/LayoutSVGRect.cpp

 /*
  * Copyright (C) 2011 University of Szeged
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 56 matching lines @@
         if (rect->rx()->currentValue()->value(lengthContext) > 0
             || rect->ry()->currentValue()->value(lengthContext) > 0
             || hasNonScalingStroke()
             || !definitelyHasSimpleStroke()) {
             LayoutSVGShape::updateShapeFromElement();
             m_usePathFallback = true;
             return;
         }
     }
 
-    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.
     m_innerStrokeRect = m_fillBoundingBox;
     m_outerStrokeRect = m_fillBoundingBox;
 
     if (style()->svgStyle().hasStroke()) {
         float strokeWidth = this->strokeWidth();
         m_innerStrokeRect.inflate(-strokeWidth / 2);
         m_outerStrokeRect.inflate(strokeWidth / 2);
@@ skipping 42 matching lines @@
     // An approximation of sqrt(2) is used here because at certain precise
     // miterlimits, the join style used might not be correct (e.g. a miterlimit
     // of 1.4142135 should result in bevel joins, but may be drawn using miter
     // joins).
     return svgStyle.strokeDashArray()->isEmpty()
         && svgStyle.joinStyle() == MiterJoin
         && svgStyle.strokeMiterLimit() >= 1.5;
 }
 
 }