The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ce66e0150c658aa9f1cf6de49bd2fff6e0ffaa59

commit ce66e0150c658aa9f1cf6de49bd2fff6e0ffaa59
Author: Mario Sanchez Prada <mario@igalia.com>
Date: Tue Nov 13 08:34:48 2018

Convert CustodianProfileDownloaderService to the Identity service

Migrate usage of SigninManagerBase::IsAuthenticated() to the
IdentityManager's API.

Bug:  903882 
Change-Id: Ib452442d5eff692eed54c7c690845005c9b1717c
Reviewed-on: https://chromium-review.googlesource.com/c/1331399
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Mario Sanchez Prada <mario@igalia.com>
Cr-Commit-Position: refs/heads/master@{#607521}
[modify] https://crrev.com/ce66e0150c658aa9f1cf6de49bd2fff6e0ffaa59/chrome/browser/supervised_user/legacy/custodian_profile_downloader_service.cc