http://build.webkit.org/builders/Chromium%20Mac%20Release%20%28Tests%29/builds/30037 fast/dom/HTMLMeterElement/meter-boundary-values.html has been flakey for the last week. On the above build, there is an image diff (attached).
Created attachment 178691 [details] Image diff Looks like the test needs a rebaseline.
Created attachment 178692 [details] Patch
> http://build.webkit.org/builders/Chromium%20Mac%20Release%20%28Tests%29/builds/30037 Unexpected flakiness: image-only failures (1) fast/dom/HTMLMeterElement/meter-boundary-values.html [ ImageOnlyFailure Pass ]
Created attachment 178697 [details] Patch
Landed as http://trac.webkit.org/changeset/137244