Merge "Handle null fields when using parcels." into udc-dev am: 54d0caca am: a561c320

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23091188



Change-Id: I1396f9abf4298b1e96704b62bdcb60bb7ddf7843
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>