Move paint code for RenderScrollbar and RenderScrollbarPart into ScrollbarPainter.

Source/core/rendering/RenderScrollbarPart.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 151 matching lines @@
             if (frameView->isFrameViewScrollCorner(this)) {
                 frameView->invalidateScrollCorner(frameView->scrollCornerRect());
                 return;
             }
         }
 
         RenderBlock::imageChanged(image, rect);
     }
 }
 
-void RenderScrollbarPart::paintIntoRect(GraphicsContext* graphicsContext, const LayoutPoint& paintOffset, const LayoutRect& rect)
-{
-    // Make sure our dimensions match the rect.
-    setLocation(rect.location() - toSize(paintOffset));
-    setWidth(rect.width());
-    setHeight(rect.height());
-
-    // Now do the paint.
-    PaintInfo paintInfo(graphicsContext, pixelSnappedIntRect(rect), PaintPhaseBlockBackground, PaintBehaviorNormal);
-    paint(paintInfo, paintOffset);
-    paintInfo.phase = PaintPhaseChildBlockBackgrounds;
-    paint(paintInfo, paintOffset);
-    paintInfo.phase = PaintPhaseFloat;
-    paint(paintInfo, paintOffset);
-    paintInfo.phase = PaintPhaseForeground;
-    paint(paintInfo, paintOffset);
-    paintInfo.phase = PaintPhaseOutline;
-    paint(paintInfo, paintOffset);
-}
-
 RenderObject* RenderScrollbarPart::rendererOwningScrollbar() const
 {
     if (!m_scrollbar)
         return 0;
     return m_scrollbar->owningRenderer();
 }
 
 }