[Webkit-unassigned] [Bug 71420] New: Stop abusing RenderTableSection::needsRecalcCells logic

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71420

           Summary: Stop abusing RenderTableSection::needsRecalcCells
                    logic
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tables
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jchaffraix at webkit.org


The current code badly misuses the needsRecalcCells logic.

Cells recalculation is an expensive operation that requires throwing off our internal representation and some layout information. It is meant for changes in the section's structure that mandates such a safe approach. Some part of the code forces this path for logical height changes, which does not make sense at all.

Let's remove those bad usage.

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