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

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 66ac961ce5bc8885d869b849c4e6d79ccfb7e394..3d8f8c0cc1a3d359c2b5d29dfafd7c1d8e1779b1 100644
--- a/Source/core/rendering/svg/RenderSVGEllipse.cpp
+++ b/Source/core/rendering/svg/RenderSVGEllipse.cpp
@@ -49,6 +49,7 @@ void RenderSVGEllipse::updateShapeFromElement()
     // to avoid using garbage.
     m_fillBoundingBox = FloatRect();
     m_strokeBoundingBox = FloatRect();
+    m_hitTestStrokeBoundingBox = FloatRect();
     m_center = FloatPoint();
     m_radii = FloatSize();
     m_usePathFallback = false;
@@ -70,9 +71,9 @@ void RenderSVGEllipse::updateShapeFromElement()
     }
 
     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_hitTestStrokeBoundingBox = m_fillBoundingBox;
+    m_hitTestStrokeBoundingBox.inflate(strokeWidth() / 2);
+    m_strokeBoundingBox = style()->svgStyle().hasStroke() ? m_hitTestStrokeBoundingBox : m_fillBoundingBox;
 }
 
 void RenderSVGEllipse::calculateRadiiAndCenter()