Factor painting code out of RenderBox into a new class called BoxPainter.

Source/core/rendering/RenderTableCell.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 10 matching lines @@
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/rendering/RenderTableCell.h"
 
 #include "core/HTMLNames.h"
 #include "core/css/StylePropertySet.h"
 #include "core/html/HTMLTableCellElement.h"
+#include "core/paint/BoxPainter.h"
 #include "core/rendering/PaintInfo.h"
 #include "core/rendering/RenderTableCol.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/SubtreeLayoutScope.h"
 #include "core/rendering/style/CollapsedBorderValue.h"
 #include "platform/geometry/FloatQuad.h"
 #include "platform/geometry/TransformState.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
 
 namespace blink {
@@ skipping 1135 matching lines @@
     if (bgLayer.hasImage() || c.alpha()) {
         // We have to clip here because the background would paint
         // on top of the borders otherwise.  This only matters for cells and rows.
         bool shouldClip = backgroundObject->hasLayer() && (backgroundObject == this || backgroundObject == parent()) && tableElt->collapseBorders();
         GraphicsContextStateSaver stateSaver(*paintInfo.context, shouldClip);
         if (shouldClip) {
             LayoutRect clipRect(adjustedPaintOffset.x() + borderLeft(), adjustedPaintOffset.y() + borderTop(),
                 width() - borderLeft() - borderRight(), height() - borderTop() - borderBottom());
             paintInfo.context->clip(clipRect);
         }
-        paintFillLayers(paintInfo, c, bgLayer, LayoutRect(adjustedPaintOffset, pixelSnappedSize()), BackgroundBleedNone, CompositeSourceOver, backgroundObject);
+        BoxPainter(*this).paintFillLayers(paintInfo, c, bgLayer, LayoutRect(adjustedPaintOffset, pixelSnappedSize()), BackgroundBleedNone, CompositeSourceOver, backgroundObject);
     }
 }
 
 void RenderTableCell::paintBoxDecorationBackground(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (!paintInfo.shouldPaintWithinRoot(this))
         return;
 
     RenderTable* tableElt = table();
     if (!tableElt->collapseBorders() && style()->emptyCells() == HIDE && !firstChild())
@@ skipping 15 matching lines @@
 
 void RenderTableCell::paintMask(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseMask)
         return;
 
     RenderTable* tableElt = table();
     if (!tableElt->collapseBorders() && style()->emptyCells() == HIDE && !firstChild())
         return;
 
-    paintMaskImages(paintInfo, LayoutRect(paintOffset, pixelSnappedSize()));
+    BoxPainter(*this).paintMaskImages(paintInfo, LayoutRect(paintOffset, pixelSnappedSize()));
 }
 
 bool RenderTableCell::boxShadowShouldBeAppliedToBackground(BackgroundBleedAvoidance, InlineFlowBox*) const
 {
     return false;
 }
 
 void RenderTableCell::scrollbarsChanged(bool horizontalScrollbarChanged, bool verticalScrollbarChanged)
 {
     LayoutUnit scrollbarHeight = scrollbarLogicalHeight();
@@ skipping 27 matching lines @@
 
 RenderTableCell* RenderTableCell::createAnonymousWithParentRenderer(const RenderObject* parent)
 {
     RenderTableCell* newCell = RenderTableCell::createAnonymous(&parent->document());
     RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(parent->style(), TABLE_CELL);
     newCell->setStyle(newStyle.release());
     return newCell;
 }
 
 } // namespace blink