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: Iaed8bc5287798167c888032409bc5a1c832f498c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>