Move the SVG container code from rendering/svg to layout/svg.

Source/core/rendering/svg/RenderSVGHiddenContainer.h

-/*
- * Copyright (C) 2007 Eric Seidel <eric@webkit.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.
- */
-
-#ifndef RenderSVGHiddenContainer_h
-#define RenderSVGHiddenContainer_h
-
-#include "core/layout/svg/LayoutSVGContainer.h"
-
-namespace blink {
-
-class SVGElement;
-
-// This class is for containers which are never drawn, but do need to support style
-// <defs>, <linearGradient>, <radialGradient> are all good examples
-class RenderSVGHiddenContainer : public LayoutSVGContainer {
-public:
-    explicit RenderSVGHiddenContainer(SVGElement*);
-
-    virtual const char* renderName() const override { return "RenderSVGHiddenContainer"; }
-
-protected:
-    virtual void layout() override;
-
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGHiddenContainer || LayoutSVGContainer::isOfType(type); }
-
-private:
-    virtual void paint(const PaintInfo&, const LayoutPoint&) override final;
-    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const LayoutLayerModelObject*, const PaintInvalidationState* = 0) const override final { return LayoutRect(); }
-    virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override final;
-
-    virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) override final;
-};
-}
-
-#endif // RenderSVGHiddenContainer_h