Move RenderSVGResource into the inheritance hierarchy

Source/core/rendering/svg/RenderSVGResource.h

Index: Source/core/rendering/svg/RenderSVGResource.h
diff --git a/Source/core/rendering/svg/RenderSVGResource.h b/Source/core/rendering/svg/RenderSVGResource.h
deleted file mode 100644
index abad795d2963d2878ce261f0138e67d512b7a27d..0000000000000000000000000000000000000000
--- a/Source/core/rendering/svg/RenderSVGResource.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * 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 "platform/graphics/Color.h"
-#include "platform/graphics/Gradient.h"
-#include "platform/graphics/Pattern.h"
-
-namespace blink {
-
-enum RenderSVGResourceMode {
-    ApplyToFillMode,
-    ApplyToStrokeMode,
-};
-
-class GraphicsContext;
-class GraphicsContextStateSaver;
-class RenderObject;
-class RenderSVGResource;
-class RenderStyle;
-
-class SVGPaintServer {
-public:
-    explicit SVGPaintServer(Color);
-    explicit SVGPaintServer(PassRefPtr<Gradient>);
-    explicit SVGPaintServer(PassRefPtr<Pattern>);
-
-    static SVGPaintServer requestForRenderer(const RenderObject&, const RenderStyle*, RenderSVGResourceMode);
-    static bool existsForRenderer(const RenderObject&, const RenderStyle*, RenderSVGResourceMode);
-
-    void apply(GraphicsContext&, RenderSVGResourceMode, GraphicsContextStateSaver* = 0);
-
-    static SVGPaintServer invalid() { return SVGPaintServer(Color(Color::transparent)); }
-    bool isValid() const { return m_color != Color::transparent; }
-
-    bool isTransformDependent() const { return m_gradient || m_pattern; }
-    void prependTransform(const AffineTransform&);
-
-private:
-    RefPtr<Gradient> m_gradient;
-    RefPtr<Pattern> m_pattern;
-    Color m_color;
-};
-
-// If |SVGPaintDescription::hasFallback| is true, |SVGPaintDescription::color| is set to a fallback color.
-struct SVGPaintDescription {
-    SVGPaintDescription() : resource(nullptr), isValid(false), hasFallback(false) { }
-    SVGPaintDescription(Color color) : resource(nullptr), color(color), isValid(true), hasFallback(false) { }
-    SVGPaintDescription(RenderSVGResource* resource) : resource(resource), isValid(true), hasFallback(false) { ASSERT(resource); }
-    SVGPaintDescription(RenderSVGResource* resource, Color fallbackColor) : resource(resource), color(fallbackColor), isValid(true), hasFallback(true) { ASSERT(resource); }
-
-    RenderSVGResource* resource;
-    Color color;
-    bool isValid;
-    bool hasFallback;
-};
-
-class RenderSVGResource {
-public:
-    RenderSVGResource() { }
-    virtual ~RenderSVGResource() { }
-
-    virtual SVGPaintServer preparePaintServer(const RenderObject&);
-
-    // Helper utilities used in to access the underlying resources for DRT.
-    static SVGPaintDescription requestPaintDescription(const RenderObject&, const RenderStyle*, RenderSVGResourceMode);
-};
-
-}
-
-#endif