tree 2aa76a24104fd59dc7b8f3c1c1c3fdfaf41fee94
parent a41b7849d0f01b0ce8ca9d5bdef909c6d43071b4
author Daniel Rosenberg <drosen@google.com> 1553029379 -0700
committer Daniel Rosenberg <drosen@google.com> 1553200429 -0700

Make needsCheckpoint cover whole session

This makes needCheckpoint return true when the device will or is using
checkpointing.

Test: vdc checkpoint startCheckpoint 1
      reboot
      vdc checkpoint needsCheckpoint
      should return 1 before and after data mounts, and 0 once the
      checkpoint has been committed

Change-Id: Ib57f4461d837f41a8110ed318168165a684d913a