am 71113e43: Merge "Reset the task stack instead of the view when Recents is hidden. (Bug. 18436876, Bug. 18394126, Bug. 18432310)" into lmp-mr1-dev

* commit '71113e43e768d973b3721f8fac9f9654ed159911':
  Reset the task stack instead of the view when Recents is hidden. (Bug. 18436876, Bug. 18394126, Bug. 18432310)