Prevent overlay drawing on top of Bluetooth discovery request dialog am: ac67100423 am: 2094f01676 am: 0b7ce7660c am: fa8d015bdb am: 682c00d893 am: 62ec2b5aa0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/11484057

Change-Id: I153ff348050ceed6fa537556af9a4a20e6e576f3