Revert "Revert "Update sysui flags on swipe, skip task backgrounds on opaque apps""

This reverts commit f5d5b6f00fcf64dc7d4a0df5dad683ba8d8921f6.

Reason for revert: Can be submitted once a build with ag/4040557 is available for flashing

Change-Id: Id94440a1dc9b765bb9758af81b0567628befa283
5 files changed