Remove unused headers from RenderSVGResource.h

Source/core/rendering/svg/RenderSVGResource.h

 /*
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * 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.
  */
 
 #ifndef RenderSVGResource_h
 #define RenderSVGResource_h
 
-#include "core/rendering/svg/RenderSVGShape.h"
-#include "core/svg/SVGDocumentExtensions.h"
-
 namespace blink {
 
 enum RenderSVGResourceType {
     MaskerResourceType,
     MarkerResourceType,
     PatternResourceType,
     LinearGradientResourceType,
     RadialGradientResourceType,
     SolidColorResourceType,
     FilterResourceType,
@@ skipping 43 matching lines @@
 
     static void markForLayoutAndParentResourceInvalidation(RenderObject*, bool needsLayout = true);
 };
 
 #define DEFINE_RENDER_SVG_RESOURCE_TYPE_CASTS(thisType, typeName) \
     DEFINE_TYPE_CASTS(thisType, RenderSVGResource, resource, resource->resourceType() == typeName, resource.resourceType() == typeName)
 
 }
 
 #endif