Add return to ProvisionedKeyDao.upgradeKeyBlob

We need to know if any keys were actually upgraded or not, so make
upgradeKeyBlob return an int.

Also add a couple more unit tests around upgrade edge cases to ensure
it works (and fails) as expected.

Test: RkpdAppUnitTests
Change-Id: Iaacb0d5f2facf78971719a65e74cece80edc2669
2 files changed
tree: 52a802d422d198a257ae397761191f55cc3607be
  1. apex/
  2. app/
  3. system-server/
  4. OWNERS
  5. PREUPLOAD.cfg