Fix pointer-events:all when stroke="none"

Source/core/rendering/svg/RenderSVGEllipse.cpp

 /*
  * Copyright (C) 2012 Google, Inc.
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 53 matching lines @@
         // has a non-scaling or discontinuous stroke.
         if (hasNonScalingStroke() || !hasContinuousStroke()) {
             RenderSVGShape::updateShapeFromElement();
             m_usePathFallback = true;
             return;
         }
     }
 
     m_fillBoundingBox = FloatRect(m_center.x() - m_radii.width(), m_center.y() - m_radii.height(), 2 * m_radii.width(), 2 * m_radii.height());
     m_strokeBoundingBox = m_fillBoundingBox;
-    if (style()->svgStyle().hasStroke())
-        m_strokeBoundingBox.inflate(strokeWidth() / 2);
+    m_strokeBoundingBox.inflate(strokeWidth() / 2);
 }
 
 void RenderSVGEllipse::calculateRadiiAndCenter()
 {
     ASSERT(element());
     if (isSVGCircleElement(*element())) {
         SVGCircleElement& circle = toSVGCircleElement(*element());
 
         SVGLengthContext lengthContext(&circle);
         float radius = circle.r()->currentValue()->value(lengthContext);
@@ skipping 48 matching lines @@
     return xrX * xrX + yrY * yrY <= 1.0;
 }
 
 bool RenderSVGEllipse::hasContinuousStroke() const
 {
     const SVGRenderStyle& svgStyle = style()->svgStyle();
     return svgStyle.strokeDashArray()->isEmpty();
 }
 
 }