fast/forms/file/input-file-label.html has been very flaky since shortly before r99873.
When it fails, the page is entirely blank. Even though those symptoms suggest it is likely the failure doesn't directly have to do with these tests, I don't have any leads and need to move on to other gardening tasks so assigning to the folks who added the test for investigation.
Created attachment 115140 [details]
Committed r100267: <http://trac.webkit.org/changeset/100267>
It looks stable recently.
Marking test failures as WontFix. Bug is still accessible and recording in TestExpectations.