Use initial values for flood/lighting-color/flood-opacity when detached

third_party/WebKit/Source/core/svg/SVGFEFloodElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007, 2008 Rob Buis <buis@kde.org>
  *
  * 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,
@@ skipping 35 matching lines @@
         return flood->setFloodColor(style.svgStyle().floodColor());
     if (attrName == SVGNames::flood_opacityAttr)
         return flood->setFloodOpacity(style.svgStyle().floodOpacity());
 
     ASSERT_NOT_REACHED();
     return false;
 }
 
 PassRefPtrWillBeRawPtr<FilterEffect> SVGFEFloodElement::build(SVGFilterBuilder*, Filter* filter)
 {
-    LayoutObject* layoutObject = this->layoutObject();
-    if (!layoutObject)
-        return nullptr;
+    Color color = Color::black;
+    float opacity = 1;
+    if (LayoutObject* layoutObject = this->layoutObject()) {
+        ASSERT(layoutObject->style());
+        const SVGComputedStyle& svgStyle = layoutObject->styleRef().svgStyle();
 
-    ASSERT(layoutObject->style());
-    const SVGComputedStyle& svgStyle = layoutObject->style()->svgStyle();
-
-    Color color = svgStyle.floodColor();
-    float opacity = svgStyle.floodOpacity();
-
+        color = svgStyle.floodColor();
+        opacity = svgStyle.floodOpacity();
+    }
     return FEFlood::create(filter, color, opacity);
 }
 
 }