Merge 122769 - Inconsistent rounding in table layout causes background color to bleed through

Source/WebCore/rendering/RenderTable.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, 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 559 matching lines @@
         return;
     
     // We don't paint our own background, but we do let the kids paint their backgrounds.
     if (paintPhase == PaintPhaseChildBlockBackgrounds)
         paintPhase = PaintPhaseChildBlockBackground;
 
     PaintInfo info(paintInfo);
     info.phase = paintPhase;
     info.updatePaintingRootForChildren(this);
 
+    IntPoint alignedOffset = roundedIntPoint(paintOffset);
+
     for (RenderObject* child = firstChild(); child; child = child->nextSibling()) {
         if (child->isBox() && !toRenderBox(child)->hasSelfPaintingLayer() && (child->isTableSection() || child->isTableCaption())) {
-            LayoutPoint childPoint = flipForWritingModeForChild(toRenderBox(child), paintOffset);
+            LayoutPoint childPoint = flipForWritingModeForChild(toRenderBox(child), alignedOffset);
             child->paint(info, childPoint);
         }
     }
     
     if (collapseBorders() && paintPhase == PaintPhaseChildBlockBackground && style()->visibility() == VISIBLE) {
         recalcCollapsedBorders();
         // Using our cached sorted styles, we then do individual passes,
         // painting each style of border from lowest precedence to highest precedence.
         info.phase = PaintPhaseCollapsedTableBorders;
         size_t count = m_collapsedBorders.size();
@@ skipping 730 matching lines @@
 const BorderValue& RenderTable::tableEndBorderAdjoiningCell(const RenderTableCell* cell) const
 {
     ASSERT(cell->isFirstOrLastCellInRow());
     if (cell->section()->hasSameDirectionAsTable())
         return style()->borderEnd();
 
     return style()->borderStart();
 }
 
 }