Modifying shouldScaleColumns for proper scaling of nested table columns

Source/core/rendering/AutoTableLayout.cpp

Index: Source/core/rendering/AutoTableLayout.cpp
diff --git a/Source/core/rendering/AutoTableLayout.cpp b/Source/core/rendering/AutoTableLayout.cpp
index 52172d2c4541b20e988680a6c3b58d4c6cd08030..81c2346f35f9af9bb56a6b19bf8a8ada7eb45747 100644
--- a/Source/core/rendering/AutoTableLayout.cpp
+++ b/Source/core/rendering/AutoTableLayout.cpp
@@ -198,7 +198,9 @@ static bool shouldScaleColumns(RenderTable* table)
             if (cb && cb->isTableCell() &&
                 (cb->style()->width().isAuto() || cb->style()->width().isPercent())) {
                 RenderTableCell* cell = toRenderTableCell(cb);
-                if (cell->colSpan() > 1 || cell->table()->style()->width().isAuto())
+                Length tableWidth = cell->table()->style()->width();
+                if (cell->colSpan() > 1 || tableWidth.isAuto() || (tableWidth.isSpecified() && tableWidth.isZero())
+                    || cell->table()->isFloatingOrOutOfFlowPositioned())

[Julien - ping for review, 2013/05/29 20:56:14]

How about some testing for these cases?

                     scale = false;
                 else
                     table = cell->table();