Merge "Respect StatusBarManager back/home disable flags" into sc-v2-dev am: f8d55e0e2a am: 2b79ee7200

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15590495

Change-Id: I858d68cb3d5367fb6add19e419b9869acb220666