http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fdom%2FHTMLMeterElement%2Fmeter-writing-mode.html&group=%40ToT%20-%20chromium.org Sounds like this test just needs a new baseline for Leopard. LEOPARD : fast/dom/HTMLMeterElement/meter-writing-mode.html = IMAGE
Look like this was rebaselined with http://trac.webkit.org/changeset/89169. I'll remove the line from test_expectations.txt.