[Webkit-unassigned] [Bug 85303] New: Tests overflow LayoutUnits in rendering code

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=85303

           Summary: Tests overflow LayoutUnits in rendering code
           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: leviw at chromium.org
                CC: eric at webkit.org, eae at chromium.org, leviw at chromium.org
        Depends on: 60318


A number of tests overflow LayoutUnits (currently integers) in rendering code. When we switch to FractionalLayoutUnits, we get asserts on debug builds when performing operations that overflow LayoutUnits. They do not crash in release builds. Here's a list of tests that overflow integers:

fast/canvas/canvas-toDataURL-crash.html
fast/spatial-navigation/snav-unit-overflow-and-scroll-in-direction.html
fast/overflow/overflow-height-float-not-removed-crash3.html
fast/selectors/querySelector-in-range-crash.html
fast/block/float/no-overhanging-float-crash.html

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