tree 81eb9b476bb97a49f705200ffd2f232a9b264e6b
parent c08aa83b48030f2605c761904ad0139619ebe982
author Vishwath Mohan <vishwath@google.com> 1522204252 -0700
committer Vishwath Mohan <vishwath@google.com> 1522204252 -0700

Clear pattern on completion (if fade is enabled).

This CL clears the pattern immediately once it's completed. This
ensures that a half-drawn pattern doesn't remain as an artifact on the
lock-screen while we display an error message.

This behavior is gated on pattern fading, so if that's disabled, then
we retain the previous behavior (of showing the incorrect pattern
along with the error message).

Test: Draw an incorrect pattern.
Bug: 74531517
Change-Id: I41569e3fe10f91b787ef22600beb66d44f98cd90