Move painting code from RenderObject into a new ObjectPainter class.

Source/core/paint/ObjectPainter.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 ObjectPainter_h
+#define ObjectPainter_h
+
+#include "core/rendering/style/RenderStyleConstants.h"
+
+namespace blink {
+
+class Color;
+class GraphicsContext;
+class LayoutPoint;
+class LayoutRect;
+struct PaintInfo;
+class RenderObject;
+class RenderStyle;
+
+class ObjectPainter {
+public:
+    ObjectPainter(RenderObject& renderObject) : m_renderObject(renderObject) { }
+
+    void paintOutline(PaintInfo&, const LayoutRect& paintRect);
+    void paintFocusRing(PaintInfo&, const LayoutPoint& paintOffset, RenderStyle*);
+
+    static void drawLineForBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2, BoxSide, Color, EBorderStyle, int adjbw1, int adjbw2, bool antialias = false);
+    static void drawDashedOrDottedBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2,
+        BoxSide, Color, int thickness, EBorderStyle, bool antialias);
+    static void drawDoubleBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2,
+        int length, BoxSide, Color, int thickness, int adjacentWidth1, int adjacentWidth2, bool antialias);
+    static void drawRidgeOrGrooveBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2,
+        BoxSide, Color, EBorderStyle, int adjacentWidth1, int adjacentWidth2, bool antialias);
+    static void drawSolidBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2,
+        BoxSide, Color, int adjacentWidth1, int adjacentWidth2, bool antialias);
+private:
+
+    RenderObject& m_renderObject;
+};
+
+} // namespace blink
+
+#endif