Move a bunch more painting code out of RenderBoxModelObject and into BoxPainter.

Source/core/rendering/RenderTableCell.cpp

Index: Source/core/rendering/RenderTableCell.cpp
diff --git a/Source/core/rendering/RenderTableCell.cpp b/Source/core/rendering/RenderTableCell.cpp
index 7c80ef0384ca6600ea0928bde16f079045b28a31..e861b06ca877080d9f0c81a97e618649567a253b 100644
--- a/Source/core/rendering/RenderTableCell.cpp
+++ b/Source/core/rendering/RenderTableCell.cpp
@@ -1142,7 +1142,7 @@ void RenderTableCell::paintCollapsedBorders(PaintInfo& paintInfo, const LayoutPo
     borders.addBorder(rightVal, BSRight, renderRight, borderRect.maxX() - rightWidth, borderRect.y(), borderRect.maxX(), borderRect.maxY(), rightStyle);
 
     GraphicsContext* graphicsContext = paintInfo.context;
-    bool antialias = shouldAntialiasLines(graphicsContext);
+    bool antialias = BoxPainter::shouldAntialiasLines(graphicsContext);
 
     for (CollapsedBorder* border = borders.nextBorder(); border; border = borders.nextBorder()) {
         if (border->borderValue.isSameIgnoringColor(*table()->currentBorderValue())) {
@@ -1197,18 +1197,20 @@ void RenderTableCell::paintBoxDecorationBackground(PaintInfo& paintInfo, const L
     if (!tableElt->collapseBorders() && style()->emptyCells() == HIDE && !firstChild())
         return;
 
+    BoxPainter boxPainter(*this);
+
     LayoutRect paintRect = LayoutRect(paintOffset, pixelSnappedSize());
-    paintBoxShadow(paintInfo, paintRect, style(), Normal);
+    boxPainter.paintBoxShadow(paintInfo, paintRect, style(), Normal);
 
     // Paint our cell background.
     paintBackgroundsBehindCell(paintInfo, paintOffset, this);
 
-    paintBoxShadow(paintInfo, paintRect, style(), Inset);
+    boxPainter.paintBoxShadow(paintInfo, paintRect, style(), Inset);
 
     if (!style()->hasBorder() || tableElt->collapseBorders())
         return;
 
-    paintBorder(paintInfo, paintRect, style());
+    boxPainter.paintBorder(paintInfo, paintRect, style());
 }
 
 void RenderTableCell::paintMask(PaintInfo& paintInfo, const LayoutPoint& paintOffset)