I'd like to take over this bug.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/27e751fa1c169d7775f4ca7365c54965f32d17f4

commit 27e751fa1c169d7775f4ca7365c54965f32d17f4
Author: Gyuyoung Kim <gyuyoung@igalia.com>
Date: Wed Jan 16 02:05:48 2019

s13n: Remove stale oauth2_token_service.h include from device_command_screenshot_job.h

There is no use of OAuth2TokenService in DeviceCommandScreenshotJob. So we don't need
to keep the oauth2_token_service.h include in device_command_screenshot_job.h anymore.

Bug:  921603 
Change-Id: If759299cdb296ab6b7ab20b15b87f051a865d74e
Reviewed-on: https://chromium-review.googlesource.com/c/1411352
Reviewed-by: Pavol Marko <pmarko@chromium.org>
Commit-Queue: Gyuyoung Kim <gyuyoung@igalia.com>
Cr-Commit-Position: refs/heads/master@{#623027}
[modify] https://crrev.com/27e751fa1c169d7775f4ca7365c54965f32d17f4/chrome/browser/chromeos/policy/remote_commands/device_command_screenshot_job.h