Fix SVG animations which set rx or ry attributes

Source/core/rendering/svg/SVGPathData.cpp

 /*
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 106 matching lines @@
 
     SVGLengthContext lengthContext(element);
     float width = rect->width().value(lengthContext);
     if (width <= 0)
         return;
     float height = rect->height().value(lengthContext);
     if (height <= 0)
         return;
     float x = rect->x().value(lengthContext);
     float y = rect->y().value(lengthContext);
-    bool hasRx = rect->hasAttribute(SVGNames::rxAttr);
-    bool hasRy = rect->hasAttribute(SVGNames::ryAttr);
+    bool hasRx = rect->rx().value(lengthContext) > 0;
+    bool hasRy = rect->ry().value(lengthContext) > 0;
     if (hasRx || hasRy) {
         float rx = rect->rx().value(lengthContext);
         float ry = rect->ry().value(lengthContext);
         if (!hasRx)
             rx = ry;
         else if (!hasRy)
             ry = rx;
         // FIXME: We currently enforce using beziers here, as at least on CoreGraphics/Lion, as
         // the native method uses a different line dash origin, causing svg/custom/dashOrigin.svg to fail.
         // See bug https://bugs.webkit.org/show_bug.cgi?id=79932 which tracks this issue.
@@ skipping 20 matching lines @@
         map->set(SVGNames::polygonTag.localName().impl(), updatePathFromPolygonElement);
         map->set(SVGNames::polylineTag.localName().impl(), updatePathFromPolylineElement);
         map->set(SVGNames::rectTag.localName().impl(), updatePathFromRectElement);
     }
 
     if (PathUpdateFunction pathUpdateFunction = map->get(element->localName().impl()))
         (*pathUpdateFunction)(element, path);
 }
 
 } // namespace WebCore