The following layout test is flaky (pass / timeout) on chromium-win. chromium-linux is also flaky but far less frequent. perf/document-contains.html See http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=perf%2Fdocument-contains.html Probable cause: Unknown. The oldest timeout run seems <http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Vista/builds/8157>, but there's no suspicious revision around there.
I regressed this in r99320. I'll mark it as slow again.
http://trac.webkit.org/changeset/99451