Merge "Add attribution info to start callbacks" into sc-dev am: 5d97f29218 am: 9d1a9399b8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15446590

Change-Id: Ib6fedf0b38bd88c3f6cd0aef6efa9529f17aaa44