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

Source/core/paint/SVGRootPainter.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SVGRootPainter_h
 #define SVGRootPainter_h
 
 namespace blink {
 
 struct PaintInfo;
 class LayoutPoint;
-class RenderSVGRoot;
+class LayoutSVGRoot;
 
 class SVGRootPainter {
 public:
-    SVGRootPainter(RenderSVGRoot& renderSVGRoot) : m_renderSVGRoot(renderSVGRoot) { }
+    SVGRootPainter(LayoutSVGRoot& renderSVGRoot) : m_renderSVGRoot(renderSVGRoot) { }
 
     void paint(const PaintInfo&, const LayoutPoint&);
 
 private:
-    RenderSVGRoot& m_renderSVGRoot;
+    LayoutSVGRoot& m_renderSVGRoot;
 };
 
 } // namespace blink
 
 #endif // SVGRootPainter_h