Address regression bug report, revert the PaintInfo rect member function.

Source/core/rendering/RenderTableSection.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, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1319 matching lines @@
     }
 
     return CellSpan(startColumn, endColumn);
 }
 
 
 void RenderTableSection::paintObject(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     PaintPhase paintPhase = paintInfo.phase;
 
-    LayoutRect localRepaintRect = paintInfo.rect();
+    LayoutRect localRepaintRect = paintInfo.rect;
     localRepaintRect.moveBy(-paintOffset);
     localRepaintRect.inflate(maximalOutlineSize(paintPhase));
 
     LayoutRect tableAlignedRect = logicalRectForWritingModeAndDirection(localRepaintRect);
 
     CellSpan dirtiedRows = this->dirtiedRows(tableAlignedRect);
     CellSpan dirtiedColumns = this->dirtiedColumns(tableAlignedRect);
 
     if (dirtiedColumns.start() < dirtiedColumns.end()) {
         if (!m_hasMultipleCellLevels && !m_overflowingCells.size()) {
@@ skipping 332 matching lines @@
     if (!style()->isLeftToRightDirection())
         cellLocation.setX(table()->columnPositions()[table()->numEffCols()] - table()->columnPositions()[table()->colToEffCol(cell->col() + cell->colSpan())] + horizontalBorderSpacing);
     else
         cellLocation.setX(table()->columnPositions()[effectiveColumn] + horizontalBorderSpacing);
 
     cell->setLogicalLocation(cellLocation);
     view()->addLayoutDelta(oldCellLocation - cell->location());
 }
 
 } // namespace WebCore