Remove dependency on BrowserThread::FILE from profile browsertests.

R=rch@chromium.org

Bug: 689520
Change-Id: I2f829ef0ce5bb2130e3224b36da092b2f520c466
Reviewed-on: https://chromium-review.googlesource.com/613661
Reviewed-by: Anthony Vallee-Dubois <anthonyvd@chromium.org>
Commit-Queue: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#495020}
1 file changed