Merge "Prevent accidental creation of PackagePreferences for non-existing...

Merge "Prevent accidental creation of PackagePreferences for non-existing packages" into tm-dev am: 0f8c8d2a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/35367812



Change-Id: Ifd01a3fc2eab45201924d2fa3cb33c851e0d9733
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>