[DeviceOffHours] Change type of |ignored_policies| values in proto

Change type of |ignored_policies| values from names in
ChromeDeviceSettingsProto to proto tags in the same proto.
Current list of ignored policies contains policy proto tags
from ChromeDeviceSettingsProto (i.e. proto tag = 1 means
device_policy_refresh_rate policy). Proto tags are used because
they are consistent identifiers.

Bug: 739713
Change-Id: I88b55c37f59445e7daf22e73b594cb7eae0bc011
Reviewed-on: https://chromium-review.googlesource.com/663265
Commit-Queue: Daria Iakovleva <yakovleva@google.com>
Reviewed-by: Sergey Poromov <poromov@chromium.org>
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#504617}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e5b58cf8148fb95a6be9440269491b2b55dac1f5
1 file changed
tree: 63f2b8f4c35b9ff1334e14e7dc7fac62377adbf7
  1. chrome_device_policy.proto
  2. install_attributes.proto