[Webkit-unassigned] [Bug 80879] New: Mock scrollbars differ by 1px in DRT vs. WKTR

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=80879

           Summary: Mock scrollbars differ by 1px in DRT vs. WKTR
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: timothy_horton at apple.com
                CC: zimmermann at kde.org, simon.fraser at apple.com


Running SVG pixel tests with tolerance=0 between DRT and WKTR, I noticed that in every case there's a scrollbar in the test, the thumb is 1px longer in DRT. (I assume, but have not tested, that this affects non-SVG tests as well). This causes the tests to fail.

Example: svg/dom/SVGLengthList-basics-diffs.html

Attaching two images from mac-lion.

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