Merge "Fix null pointer exception when getting app label for headless app" into udc-d1-dev am: d4c13186a8 am: 43271bb446 am: 77cd41512b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24405071

Change-Id: I694f315659f93332b9d209ac114d2719c73d0702
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>