I realized it when checking pixel results. This test only has text so there is not reason to dump render tree and pixels.
Created attachment 177222 [details] Patch
Comment on attachment 177222 [details] Patch LGTM. Mac does not pass all tests, but I checked that this is unrelated to this test. r=me.
Comment on attachment 177222 [details] Patch Clearing flags on attachment: 177222 Committed r136395: <http://trac.webkit.org/changeset/136395>
All reviewed patches have been landed. Closing bug.