Move the remaining rendering/svg/RenderSVG* files to layout.

Source/core/rendering/svg/RenderSVGGradientStop.h

-/*
- * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
- * Copyright (C) 2009 Google, Inc.
- *
- * 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 RenderSVGGradientStop_h
-#define RenderSVGGradientStop_h
-
-#include "core/layout/LayoutObject.h"
-
-namespace blink {
-
-class SVGGradientElement;
-class SVGStopElement;
-
-// This class exists mostly so we can hear about gradient stop style changes
-class RenderSVGGradientStop final : public LayoutObject {
-public:
-    explicit RenderSVGGradientStop(SVGStopElement*);
-    virtual ~RenderSVGGradientStop();
-
-    virtual const char* renderName() const override { return "RenderSVGGradientStop"; }
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVG || type == LayoutObjectSVGGradientStop || LayoutObject::isOfType(type); }
-
-    virtual void layout() override;
-
-    // This overrides are needed to prevent ASSERTs on <svg><stop /></svg>
-    // LayoutObject's default implementations ASSERT_NOT_REACHED()
-    // https://bugs.webkit.org/show_bug.cgi?id=20400
-    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const LayoutLayerModelObject*, const PaintInvalidationState* = 0) const override { return LayoutRect(); }
-    virtual FloatRect objectBoundingBox() const override { return FloatRect(); }
-    virtual FloatRect strokeBoundingBox() const override { return FloatRect(); }
-    virtual FloatRect paintInvalidationRectInLocalCoordinates() const override { return FloatRect(); }
-
-protected:
-    virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) override;
-
-private:
-    SVGGradientElement* gradientElement() const;
-};
-
-DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderSVGGradientStop, isSVGGradientStop());
-
-}
-
-#endif // RenderSVGGradientStop_h