tree aa03ae429f18fe8e94fa040361f84bdef51179d4
parent a8c7794856c5794fa5b31cf5398b8f773650d6c7
author Adrian Roos <roosa@google.com> 1516397488 +0100
committer Adrian Roos <roosa@google.com> 1516716410 +0100

FRP: Explicitly throw UnsupportedOperation when FRP is not supported

Changes KeyguardManager.createConfirmFactoryResetCredentialIntent such that
it throws UnsupportedOperationException when credential-based FRP is not
available on the device (either because storage was corrupted, or the device
simply does not support it).

This allows GMScore to distinguish this case from when the previous owner
simply didn't set up security.

Also fixes a few places where we previously unintentionally crashed with an
NPE.

Bug: 72368658
Test: atest LockSettingsStorageTests
Change-Id: I92fe1d4b06834e76a4bfffad41276ca28c68ce70