Mark when we may have been invalidated to early out on repaintTreeAfterLayout.

Source/core/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 395 matching lines @@
     for (RenderTableSection* section = topSection(); section; section = sectionBelow(section)) {
         section->layoutIfNeeded();
         section->computeOverflowFromCells();
     }
 }
 
 void RenderTable::layout()
 {
     ASSERT(needsLayout());
 
+    setMayNeedInvalidation(true);
+
     if (simplifiedLayout())
         return;
 
     // Note: RenderTable is handled differently than other RenderBlocks and the LayoutScope
     //       must be created before the table begins laying out.
     FastTextAutosizer::LayoutScope fastTextAutosizerLayoutScope(this);
 
     recalcSectionsIfNeeded();
     // FIXME: We should do this recalc lazily in borderStart/borderEnd so that we don't have to make sure
     // to call this before we call borderStart/borderEnd to avoid getting a stale value.
     recalcBordersInRowDirection();
 
     LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
     SubtreeLayoutScope layouter(*this);
 
-
     // If any table section moved vertically, we will just repaint everything from that
     // section down (it is quite unlikely that any of the following sections
     // did not shift).
     bool sectionMoved = false;
     LayoutUnit movedSectionLogicalTop = 0;
     {
         LayoutStateMaintainer statePusher(*this, locationOffset());
 
         setLogicalHeight(0);
 
@@ skipping 1015 matching lines @@
 const BorderValue& RenderTable::tableEndBorderAdjoiningCell(const RenderTableCell* cell) const
 {
     ASSERT(cell->isFirstOrLastCellInRow());
     if (hasSameDirectionAs(cell->row()))
         return style()->borderEnd();
 
     return style()->borderStart();
 }
 
 }