The test is timing out on Chromium Win intermittently: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=http%2Ftests%2Finspector%2Fresource-tree%2Fresource-tree-frame-add.html&group=%40ToT%20-%20chromium.org
*** This bug has been marked as a duplicate of bug 59771 ***