[Webkit-unassigned] [Bug 100794] New: Enable complex-text measuring optimization for platforms using HarfBuzz

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=100794

           Summary: Enable complex-text measuring optimization for
                    platforms using HarfBuzz
           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: eae at chromium.org, leviw at chromium.org,
                    bashi at chromium.org


Enable complex-text measuring optimization for platforms using HarfBuzz

Harfbuzz was explicitly excluded from:
http://trac.webkit.org/changeset/130851

Due to a fast/text/shaping/shaping-selection-rect.html regression:
https://bugs.webkit.org/show_bug.cgi?id=98317#c29

Enabling this is a 10% win for line layout.  Those don't come along very often. :)

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