Merge "Allow one-handed mode shortcut expand notification" into sc-dev am:...

Merge "Allow one-handed mode shortcut expand notification" into sc-dev am: 789f014c am: d3b7eb8d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14957128

Change-Id: Ib77976a9b61d0cc4e94a84363422dfad34a98569