Merge "Handle back shortcuts in native and remove home shortcut handling" into...

Merge "Handle back shortcuts in native and remove home shortcut handling" into udc-dev am: 054486ae am: 4a55b755

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/21548190



Change-Id: If2cbe5a8e115af92297515b037a4b50d378f2e2e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>