Move paint code from RenderImage/RenderVideo into ImagePainter/VideoPainter.

Source/core/paint/VideoPainter.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 HTMLCanvasPainter_h
-#define HTMLCanvasPainter_h
+#ifndef VideoPainter_h
+#define VideoPainter_h
 
 namespace blink {
 
+class GraphicsContext;
 struct PaintInfo;
 class LayoutPoint;
-class RenderHTMLCanvas;
+class LayoutRect;
+class RenderVideo;
 
-class HTMLCanvasPainter {
+class VideoPainter {
 public:
-    HTMLCanvasPainter(RenderHTMLCanvas& renderHTMLCanvas) : m_renderHTMLCanvas(renderHTMLCanvas) { }
+    VideoPainter(RenderVideo& renderVideo) : m_renderVideo(renderVideo) { }
+
     void paintReplaced(PaintInfo&, const LayoutPoint&);
 
 private:
-    RenderHTMLCanvas& m_renderHTMLCanvas;
+
+    RenderVideo& m_renderVideo;
 };
 
 } // namespace blink
 
-#endif // HTMLCanvasPainter_h
+#endif // VideoPainter_h