Merge "Store trusted AttributionSources without token" into udc-dev am: f0ebf50841 am: 09e8508661

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24708071

Change-Id: I7e407e3a6e92e757905bc44f7e2dfb04f321c5b4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>