Merge "Moved AttributionSource related APIs in AttributionSource" am: 70d456d06c am: 52ddc063b0 am: e5d5eefb16

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1922817

Change-Id: Id6bcfb0cca120540dd251dda22c713539c5c2b8c