CL here: https://chromium-review.googlesource.com/c/chromium/src/+/1338105

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5560ed3ac404325da1ad3b2272469b6236bb85ca

commit 5560ed3ac404325da1ad3b2272469b6236bb85ca
Author: Mario Sanchez Prada <mario@igalia.com>
Date: Fri Nov 16 17:12:21 2018

Convert oauth2_browsertest.cc away from ProfileOAuth2TokenService

Replace usage of PO2TS APIs with calls to IdentityManager's methods.

Bug:  905280 
Change-Id: I5ea837b30e2ca44ca3e44ef012d81aff57acc636
Reviewed-on: https://chromium-review.googlesource.com/c/1338105
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Mario Sanchez Prada <mario@igalia.com>
Cr-Commit-Position: refs/heads/master@{#608816}
[modify] https://crrev.com/5560ed3ac404325da1ad3b2272469b6236bb85ca/chrome/browser/chromeos/login/signin/oauth2_browsertest.cc
[modify] https://crrev.com/5560ed3ac404325da1ad3b2272469b6236bb85ca/chrome/test/BUILD.gn