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

Source/core/rendering/svg/RenderSVGGradientStop.cpp

-/*
- * 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.
- */
-
-#include "config.h"
-
-#include "core/rendering/svg/RenderSVGGradientStop.h"
-
-#include "core/layout/svg/LayoutSVGResourceContainer.h"
-#include "core/svg/SVGGradientElement.h"
-#include "core/svg/SVGStopElement.h"
-
-namespace blink {
-
-RenderSVGGradientStop::RenderSVGGradientStop(SVGStopElement* element)
-    : LayoutObject(element)
-{
-}
-
-RenderSVGGradientStop::~RenderSVGGradientStop()
-{
-}
-
-void RenderSVGGradientStop::styleDidChange(StyleDifference diff, const LayoutStyle* oldStyle)
-{
-    LayoutObject::styleDidChange(diff, oldStyle);
-    if (!diff.hasDifference())
-        return;
-
-    // <stop> elements should only be allowed to make renderers under gradient elements
-    // but I can imagine a few cases we might not be catching, so let's not crash if our parent isn't a gradient.
-    SVGGradientElement* gradient = gradientElement();
-    if (!gradient)
-        return;
-
-    LayoutObject* renderer = gradient->renderer();
-    if (!renderer)
-        return;
-
-    LayoutSVGResourceContainer* container = toLayoutSVGResourceContainer(renderer);
-    container->removeAllClientsFromCache();
-}
-
-void RenderSVGGradientStop::layout()
-{
-    clearNeedsLayout();
-}
-
-SVGGradientElement* RenderSVGGradientStop::gradientElement() const
-{
-    ContainerNode* parentNode = node()->parentNode();
-    ASSERT(parentNode);
-    return isSVGGradientElement(*parentNode) ? toSVGGradientElement(parentNode) : 0;
-}
-
-}