SVGFE{Spot,Distant,Point}LightElement can have non-SVGFE*Lighting parent

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

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Oliver Hunt <oliver@nerget.com>
  *
  * 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.
  *
@@ skipping 87 matching lines @@
         || attrName == SVGNames::limitingConeAngleAttr) {
         ContainerNode* parent = parentNode();
         if (!parent)
             return;
 
         LayoutObject* layoutObject = parent->layoutObject();
         if (!layoutObject || !layoutObject->isSVGResourceFilterPrimitive())
             return;
 
         SVGElement::InvalidationGuard invalidationGuard(this);
-        if (isSVGFEDiffuseLightingElement(*parent)) {
+        if (isSVGFEDiffuseLightingElement(*parent))
             toSVGFEDiffuseLightingElement(*parent).lightElementAttributeChanged(this, attrName);
-            return;
-        }
-        if (isSVGFESpecularLightingElement(*parent)) {
+        else if (isSVGFESpecularLightingElement(*parent))
             toSVGFESpecularLightingElement(*parent).lightElementAttributeChanged(this, attrName);
-            return;
-        }
 
-        ASSERT_NOT_REACHED();
+        return;
     }
 
     SVGElement::svgAttributeChanged(attrName);
 }
 
 void SVGFELightElement::childrenChanged(const ChildrenChange& change)
 {
     SVGElement::childrenChanged(change);
 
     if (!change.byParser) {
         if (ContainerNode* parent = parentNode()) {
             LayoutObject* layoutObject = parent->layoutObject();
             if (layoutObject && layoutObject->isSVGResourceFilterPrimitive())
                 markForLayoutAndParentResourceInvalidation(layoutObject);
         }
     }
 }
 
 } // namespace blink