Merge changes from topic "presubmit-am-b3ba9bd7b2c9457694d3fdc81abd6a37" into tm-dev

* changes:
  [automerged blank] [DO NOT MERGE] Add FLAG_SECURE for ChooseLockPassword and Pattern 2p: 98e3bfdebb 2p: 353e941920
  [automerge] [DO NOT MERGE] Add FLAG_SECURE for ChooseLockPassword and Pattern 2p: 98e3bfdebb
  [DO NOT MERGE] Add FLAG_SECURE for ChooseLockPassword and Pattern