commit af1c3cb4403eb10348e91934b26e4cd09bf655f0
author Alex Johnston <acjohnston@google.com> Tue Aug 04 14:39:10 2020 +0100
committer Alex Johnston <acjohnston@google.com> Thu Aug 13 17:30:10 2020 +0100
tree 8175580b5c9134f896988da202efc6ad5e15982f
parent 71008157a7a16a740130c5ec37be365cc0feb4af

Add precondition checks

* Add precondition checks to check the call authorization
  and the calling user.
* Add CallerIdentity object and helper method to create
  and return a CallerIdentity object.
* Add isDeviceOwner check which takes in a CallingIdentity
* Update setLocationEnabled to use new precondition check

Bug: 162825394
Test: atest com.android.server.devicepolicy.DevicePolicyManagerTest
      atest com.android.cts.devicepolicy.DeviceOwnerTest#testSetLocationEnabled
Change-Id: I6054620aab661f302ebe0cb8c13bf906aad3cb68