Crash trying to render a SVGFEDistantLightElement

Source/core/svg/SVGFELightElement.h

 /*
  * Copyright (C) 2004, 2005 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 25 matching lines @@
 
 protected:
     SVGFELightElement(const QualifiedName&, Document*);
 
 private:
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&);
     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
+    virtual bool rendererIsNeeded(const NodeRenderingContext&) OVERRIDE { return false; }
+
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGFELightElement)
         DECLARE_ANIMATED_NUMBER(Azimuth, azimuth)
         DECLARE_ANIMATED_NUMBER(Elevation, elevation)
         DECLARE_ANIMATED_NUMBER(X, x)
         DECLARE_ANIMATED_NUMBER(Y, y)
         DECLARE_ANIMATED_NUMBER(Z, z)
         DECLARE_ANIMATED_NUMBER(PointsAtX, pointsAtX)
         DECLARE_ANIMATED_NUMBER(PointsAtY, pointsAtY)
         DECLARE_ANIMATED_NUMBER(PointsAtZ, pointsAtZ)
         DECLARE_ANIMATED_NUMBER(SpecularExponent, specularExponent)
         DECLARE_ANIMATED_NUMBER(LimitingConeAngle, limitingConeAngle)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 } // namespace WebCore
 
 #endif