[Webkit-unassigned] [Bug 117476] New: Styles in nested shadows are not recalculated correctly on insertion

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117476

           Summary: Styles in nested shadows are not recalculated
                    correctly on insertion
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: hyatt at apple.com, koivisto at iki.fi,
                    simon.fraser at apple.com


Consider merging https://chromium.googlesource.com/chromium/blink/+/dc5fc6795eacef884fe9910cbe2aa961d1809ca1

Moved StyleElement::insertedIntoDocument into didNotifySubtreeInsertions.

We should avoid style-recalc during subtree insertions.

If invoke style-recalc, we might invoke createRenderer for elements that have not been inserted into document yet.
(i.e. the elements' inDocument flags are false).
The recalc also clears needsStyleRecalc flag. This blocks correct style-recalc.

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