Move painting code for tables into *Paint classes.

Source/core/paint/TableSectionPainter.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 TableSectionPainter_h
+#define TableSectionPainter_h
+
+namespace blink {
+
+class LayoutPoint;
+struct PaintInfo;
+class RenderTableCell;
+class RenderTableSection;
+
+class TableSectionPainter {
+public:
+    TableSectionPainter(RenderTableSection& renderTableSection) : m_renderTableSection(renderTableSection) { }
+
+    void paint(PaintInfo&, const LayoutPoint&);
+    void paintObject(PaintInfo&, const LayoutPoint&);
+
+private:
+    void paintCell(RenderTableCell*, PaintInfo&, const LayoutPoint&);
+
+    RenderTableSection& m_renderTableSection;
+};
+
+} // namespace blink
+
+#endif // TableSectionPainter_h