Migrate ChromeBrowserStateManagerImpl to TaskScheduler.

R=sdefresne@chromium.org

Bug: 689520
Change-Id: I4a6f898d2f7b645894c6823162955be62887f6e2
Reviewed-on: https://chromium-review.googlesource.com/614906
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#494996}
1 file changed