Merge changes from topic "topic_sc-dev" into sc-mainline-prod

* changes:
  [automerge] Tradefed (Tiramisu) 2p: 947c109ea3
  Tradefed (Tiramisu)
tree: 7b097169d41376229b3a4936eff373ac0897792d
  1. filegroups/
  2. test_harness/
  3. OWNERS