[Webkit-unassigned] [Bug 117428] New: applyAuthorStyles and resetStyleInheritance should use shadow root's setNeedsStyleRecalc, not shadow host's

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117428

           Summary: applyAuthorStyles and resetStyleInheritance should use
                    shadow root's setNeedsStyleRecalc, not shadow host's
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: koivisto at iki.fi, akling at apple.com


Consider merging https://chromium.googlesource.com/chromium/blink/+/6631b7cdff92c6c3261e037936ae5213f0eebdf7

- ShadowRoot::recalcStyle should see its styleChangeType. If FullStyleChange, use Force for its children's style recalc.
- Changed applyAuthorStyles and resetStyleInheritance to check whether the modified shadow root is inert or not. If inert, we don't need style recalc.

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