Move SVG shape painting code to SVGShapePainter

Source/core/paint/SVGShapePainter.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 SVGShapePainter_h
+#define SVGShapePainter_h
+
+namespace blink {
+
+struct PaintInfo;
+class FloatPoint;
+class GraphicsContext;
+class Path;
+class RenderSVGShape;
+
+class SVGShapePainter {
+public:
+    SVGShapePainter(RenderSVGShape& renderSVGShape) : m_renderSVGShape(renderSVGShape) { }
+
+    void paint(PaintInfo&);
+
+private:
+    void fillShape(GraphicsContext*);
+    void strokeShape(GraphicsContext*);
+
+    void paintMarkers(PaintInfo&);
+    void strokeZeroLengthLineCaps(GraphicsContext*);
+    Path* zeroLengthLinecapPath(const FloatPoint&) const;
+
+    RenderSVGShape& m_renderSVGShape;
+};
+
+} // namespace blink
+
+#endif // SVGShapePainter_h