http://test-results.appspot.com/dashboards/flakiness_dashboard.html#showExpectations=true&tests=ietestcenter%2Fcss3%2Fbordersbackgrounds%2Fborder-radius-clip-002.htm The image looks correct for win and linux, but broken for mac.
Created attachment 148451 [details] Patch
Committed r120768: <http://trac.webkit.org/changeset/120768>