[SVG2] css 'outline' property should apply to svg elements

Source/core/rendering/svg/RenderSVGRoot.cpp

Index: Source/core/rendering/svg/RenderSVGRoot.cpp
diff --git a/Source/core/rendering/svg/RenderSVGRoot.cpp b/Source/core/rendering/svg/RenderSVGRoot.cpp
index 3726059f15e3f1c6ceceac4014ab1554396f8977..885046da3772b8bb683882e00d38ad7f4aa43e37 100644
--- a/Source/core/rendering/svg/RenderSVGRoot.cpp
+++ b/Source/core/rendering/svg/RenderSVGRoot.cpp
@@ -228,6 +228,10 @@ void RenderSVGRoot::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paint
     if (paintInfo.context->paintingDisabled())
         return;
 
+    // SVG outlines are painted during PaintPhaseForeground.
+    if (paintInfo.phase == PaintPhaseOutline || paintInfo.phase == PaintPhaseSelfOutline)
+        return;
+
     // An empty viewBox also disables rendering.
     // (http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute)
     SVGSVGElement* svg = toSVGSVGElement(node());