Hide windows even when AOD is off

AOD might be off but it can become visible when the user double taps
or lifts the phone. We should prepare the window manager for these
cases.

Test: turn AOD on and off, set screen lock to 'None', double tap display
Fixes: 110938816
Change-Id: I6f2db86579d5b86a86fcd1a4515ee77c78460c9d
Merged-In: I6f2db86579d5b86a86fcd1a4515ee77c78460c9d