Merge changes Ia8a90434,I35f484c7,I2e87e764 into nyc-dev
am: dddfff3

* commit 'dddfff3cddf8c12aba0335eb853f177abb0a68b0':
  Tweaks to make overview animations to match spec.
  Closing system windows when dismissing recents to app or home.
  Caching the display rect to reduce binder calls.

Change-Id: Ic08f9b13b65dc0bebd2dcd79612089a65cca1262