[Webkit-unassigned] [Bug 90004] New: The table logic doesn't properly notify its TableLayout when the column structure change

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=90004

           Summary: The table logic doesn't properly notify its
                    TableLayout when the column structure change
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jchaffraix at webkit.org
                CC: inferno at chromium.org


We currently recompute the internal TableLayout table's representation during the preferred logical widths computation. This is fine but the table logic doesn't dirty these widths as needed to ensure that both structures are in sync.

After bug 88676, TableLayout::layout ensures that both representations are now in sync for layout but this is not a proper fix, more like a work-around our leaky logic.

Ideas:
* Keep the current logic but ensures that we dirty the logical widths more often.
* Investigate hooking up more logic on table structure change (splitColumn / addColumn)

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