Prevent overlay drawing on top of Bluetooth pairing dialog am: 3f5bf02fd8 am: a0c963ba95 am: 368fc30e37

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/11484056

Change-Id: I8e629bb072063071da36122eedfeb779ce9407fb