[Webkit-unassigned] [Bug 64546] Redrawing dirty parts of a large table is very slow

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64546





--- Comment #14 from Eric Seidel <eric at webkit.org>  2011-09-07 11:36:34 PST ---
(From update of attachment 106582)
View in context: https://bugs.webkit.org/attachment.cgi?id=106582&action=review

The change looks sane (and well tested) to me, but I know very little about our table code. I'm willing to approve it if no one comments within the next couple of days, but I would like to leave the table authors adequate time to say something.

> Source/WebCore/rendering/RenderTable.cpp:440
> +        if (o->isTableCell())
> +            toRenderTableCell(o)->collectBorderValues(m_collapsedBorders);

If these only come from TableCells why do we need to invalidate them from columns and sections?

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