[Webkit-unassigned] [Bug 111627] New: recalcStyle() with a Detach styleDiff calculates style twice

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=111627

           Summary: recalcStyle() with a Detach styleDiff calculates style
                    twice
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eric at webkit.org
                CC: koivisto at iki.fi, esprehn at chromium.org,
                    rniwa at webkit.org


recalcStyle() with a Detach styleDiff calculates style twice

As noted in:
https://bugs.webkit.org/show_bug.cgi?id=111494#c16

This is extra-bad, because I believe using lazyAttach will always go down this code path.  Fixing this could be as much as an 8% win on html5-full-render, if it cuts our style-resolves in half. :)

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