Merge "Store trusted AttributionSources without token" into udc-qpr-dev am: 41e4ebf022 am: f357a8d0d7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24626098

Change-Id: I18c63c20a77ab7eb3897f637c49e1bc2552aa865
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>