The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a42f032712f98c56cd1d914ac9360276cd2e0539

commit a42f032712f98c56cd1d914ac9360276cd2e0539
Author: Lutz Justen <ljusten@chromium.org>
Date: Wed Mar 14 14:55:18 2018

Fix UserAvatarImage and WallpaperImage for Chromad

Both are 'external'-type policies, i.e. the images are not included in
the policy, but downloaded separately. However, the mechanisms to
download external user policies were not hooked up. This CL wires them
up. Interestingly, DeviceWallpaperImage works fine.

BUG= chromium:819561 
TEST=out/Release/unit_tests --gtest_filter=ActiveDirectoryPolicyManagerTest.*
     Set UserAvatarImage and WallpaperImage on Windows Server and
     verified that it applies on a domain joined Chromebook.

Change-Id: I8670a3e1ba0edcee31ed5753be92b021e9553bb0
Reviewed-on: https://chromium-review.googlesource.com/952903
Commit-Queue: Lutz Justen <ljusten@chromium.org>
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543084}
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/login/users/chrome_user_manager_impl.cc
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/policy/active_directory_policy_manager.cc
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/policy/active_directory_policy_manager.h
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/policy/active_directory_policy_manager_unittest.cc
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/policy/cloud_external_data_policy_observer.cc
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/policy/cloud_external_data_policy_observer.h
[modify] https://crrev.com/a42f032712f98c56cd1d914ac9360276cd2e0539/chrome/browser/chromeos/policy/user_policy_manager_factory_chromeos.cc

Also fixes the NativePrintersBulkConfiguration policy.

Hi Lutz,

When attempted to verify this bug, I have set UserAvatarImage and WallpaperImage policies on Windows Server (see attached screenshots), but they were not applied (policies.json and debug-logs attached). And looks like DeviceWallpaperImage also doesn't work. Could you please take a look?

Chrome OS: 10575.4.0
Chrome: 67.0.3396.8
Device: Paine

Deleted: Screenshot from 2018-04-17 13-27-54.png 29.5 KB

	Screenshot from 2018-04-17 13-27-54.png 29.5 KB View Download

Deleted: Screenshot from 2018-04-17 13-28-27.png 30.6 KB

	Screenshot from 2018-04-17 13-28-27.png 30.6 KB View Download

Deleted: policies.json 2.9 KB

policies.json 2.9 KB View Download

Deleted: debug-logs_20180417-132304.tgz 1001 KB

debug-logs_20180417-132304.tgz 1001 KB Download

The URL is not sufficient. You have to put in JSON including the URL and a SHA256 hash (32 characters).

{"hash": "<SHA256 hash of image>", "url": "https://example.com/wallpaper.jpg"}

Thanks, Lutz!

I was able to configure UserAvatarImage and WallpaperImage policies (JSON attached), no issues.

Chrome OS: 10575.12.0
Chrome: 67.0.3396.16
Device: Santa

Deleted: policies.json 6.1 KB

policies.json 6.1 KB View Download