[Webkit-unassigned] [Bug 84920] New: Add ASSERTs to avoid querying dirtied z-index or normal flow lists on RenderLayer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=84920

           Summary: Add ASSERTs to avoid querying dirtied z-index or
                    normal flow lists on RenderLayer
           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: simon.fraser at apple.com, achicu at adobe.com,
                    jamesr at chromium.org, enne at google.com


Currently some call sites are explicitly checking that none of the RenderLayer's lists (negative z-index, positive z-index and normal flow) are not dirtied. I can't think of a time where we would be fine getting a dirtied value on a stacking context so it would make sense to just push the ASSERT down to the getters for broader coverage.

Patch forthcoming.

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