DO NOT MERGE: De-guava BroadcastInterceptingContext and move it to testutils....
DO NOT MERGE: De-guava BroadcastInterceptingContext and move it to testutils. am: 3c295b59 -s ours
am: bcb7e329 -s ours
Change-Id: I377b66283b29bb97e02ec796352bc3a5dbea1454