Move paint code from RenderSVGText to SVGTextPainter

Source/core/paint/SVGTextPainter.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 SVGTextPainter_h
+#define SVGTextPainter_h
+
+namespace blink {
+
+struct PaintInfo;
+class RenderSVGText;
+
+class SVGTextPainter {
+public:
+    SVGTextPainter(RenderSVGText& renderSVGText) : m_renderSVGText(renderSVGText) { }
+    void paint(PaintInfo&);
+
+private:
+    RenderSVGText& m_renderSVGText;
+};
+
+} // namespace blink
+
+#endif // SVGTextPainter_h