GitLab

This CL migrates ArcStorageManager.

BUG=672829
TEST=Ran try.

Change-Id: If91bab2be503825fa3c10ee71053acf52c504057
Reviewed-on: https://chromium-review.googlesource.com/572886
Commit-Queue: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Luis Hector Chavez <lhchavez@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487189}