Merge "Resolve NPE when user updates display size" into udc-dev am: f4425cdf3c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/23516903

Change-Id: I58065429cd5a8e15f61134ce9051cf88c7eed7fb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>