The following layout test is failing on Windows: http/tests/images/image-supports-video.html Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fimages%2Fimage-supports-video.html
Updated test expectations in <https://trac.webkit.org/changeset/227620/webkit>.