Remove unused headers from RenderSVGResource.h

Source/core/svg/SVGFEDiffuseLightingElement.cpp

 /*
  * Copyright (C) 2005 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  *
  * 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
-
 #include "core/svg/SVGFEDiffuseLightingElement.h"
 
+#include "core/rendering/RenderObject.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "core/svg/SVGParserUtilities.h"
 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
 #include "platform/graphics/filters/FEDiffuseLighting.h"
 #include "platform/graphics/filters/FilterEffect.h"
 
 namespace blink {
 
 inline SVGFEDiffuseLightingElement::SVGFEDiffuseLightingElement(Document& document)
     : SVGFilterPrimitiveStandardAttributes(SVGNames::feDiffuseLightingTag, document)
@@ skipping 137 matching lines @@
     Color color = renderer->style()->svgStyle().lightingColor();
 
     RefPtr<LightSource> lightSource = lightNode->lightSource(filter);
     RefPtr<FilterEffect> effect = FEDiffuseLighting::create(filter, color, m_surfaceScale->currentValue()->value(), m_diffuseConstant->currentValue()->value(),
         kernelUnitLengthX()->currentValue()->value(), kernelUnitLengthY()->currentValue()->value(), lightSource.release());
     effect->inputEffects().append(input1);
     return effect.release();
 }
 
 } // namespace blink