Merge "Add cache strategy for getUsageSource()." into udc-qpr-dev am: 1b43697eb8 am: 5964c972fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/24236476

Change-Id: If040bea85d7eb72805175f2585e1155100d5eb6b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>