[Webkit-unassigned] [Bug 85658] New: Painting collapsed borders during scrolling

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=85658

           Summary: Painting collapsed borders during scrolling
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
               URL: http://test.csswg.org/suites/css2.1/nightly-unstable/h
                    tml4/border-conflict-element-001d.htm
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: robert at webkit.org


If you make the viewport very small on the above test and scroll up and down the borders on the first table aren't painted properly. RenderTableSection::paintObject() needs to call paintCollapsedBorders() an extra row up beyond the one that's dirty in order to render the borders correctly I think.

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