Background
* If the device is an organization-owned managed
profile device and a FRP policy is set, the
factory reset protection data is no longer
erased from factory reset in Settings.
Changes
* Added isNotEmpty method to FRP policy.
* Allow Settings to call
getFactoryResetProtectionPolicy
by checking for the MASTER_CLEAR permission.
Bug: 148847767
Test: manual testing
atest com.android.server.devicepolicy.DevicePolicyManagerTest
Change-Id: I04f178255dd215579087c33b675b40eed7a6eac7
103f93a7e6