Remove SVGElementInstance includes

Source/core/svg/SVGFEGaussianBlurElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 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,
  * 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/SVGFEGaussianBlurElement.h"
 
 #include "SVGNames.h"
 #include "platform/graphics/filters/FilterEffect.h"
-#include "core/svg/SVGElementInstance.h"
 #include "core/svg/SVGParserUtilities.h"
 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
 
 namespace WebCore {
 
 SVGFEGaussianBlurElement::SVGFEGaussianBlurElement(Document& document)
     : SVGFilterPrimitiveStandardAttributes(SVGNames::feGaussianBlurTag, document)
     , m_stdDeviation(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::stdDeviationAttr, 0, 0))
     , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
 {
@@ skipping 65 matching lines @@
 
     if (stdDeviationX()->currentValue()->value() < 0 || stdDeviationY()->currentValue()->value() < 0)
         return nullptr;
 
     RefPtr<FilterEffect> effect = FEGaussianBlur::create(filter, stdDeviationX()->currentValue()->value(), stdDeviationY()->currentValue()->value());
     effect->inputEffects().append(input1);
     return effect.release();
 }
 
 }