[Webkit-unassigned] [Bug 163533] New: REGRESSION(r203496-203468): [GTK][ThreadedCompositor] Layout test security/contentSecurityPolicy/video-with-data-url-allowed-by-media-src-star.html is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=163533

            Bug ID: 163533
           Summary: REGRESSION(r203496-203468): [GTK][ThreadedCompositor]
                    Layout test
                    security/contentSecurityPolicy/video-with-data-url-all
                    owed-by-media-src-star.html is flaky
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org, cgarcia at igalia.com

This would be another good one to look at. Layout test security/contentSecurityPolicy/video-with-data-url-allowed-by-media-src-star.html was broken by one of r203496 ("[GTK] Web view background colors don't work in accelerated compositing mode"), r203497 ("[GTK][Threaded Compositor] Web view background colors don't work"), or less-likely r203468 ("[Threaded Compositor] Flickering when zooming in/out in maps.google.com"). It's a bit tricky because the actual result is actually being displayed properly, but the expected result is now broken (it's a reftest).

Note that it sometimes passes, which might be related to why we sometimes have a very high number of unexpected passes since enabling threaded compositor.

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