cb2ce6f1f0
- Make FingerprintService more closely track the expected state of fingerprintd. - Don't switch to a new operation until fingerprintd completes previous operation. - Refactor clients into separate classes and add tracking logic. - Add missing enumerate()/cancelEnumeration() methods to IFingerprintDaemon - Make late-binding decision of "foregroundness" of activity so that it's decided in the order the events are actually handled. - Add more logging so we can determine FingerprintService state when errors occur. - Cache a copy of authenticator_id from the last time it was set so we don't interrupt the driver during actual authentication. - Don't allow clients to access authenticator_id unless they're current. Fixes: 27902478, 26273819 Change-Id: Ic1f9e30bd89bcdbb8fe7f69e0545e68339317721