Make isTooltipEnabled a getter due to its mutable dependencies. am: aa08af87 am: 3450bbf9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21652556



Change-Id: I56460f6e6b45ea168baa1c567d265debb7fc62c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>