Migrate ProfileManager off BrowserThread::FILE.

R=rch@chromium.org

Bug: 689520
Change-Id: I59ce937f23fee37cf4cf674e21d1f412b144db60
Reviewed-on: https://chromium-review.googlesource.com/613575
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Stefan Kuhne <skuhne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#495338}
2 files changed