[automerger skipped] Added tests for QosCallback am: 763f3a0fb3 -s ours

am skip reason: Merged-In I29769fc8be074a5105bfe4ac34e30980c5f8744a with SHA-1 6214f82c04 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/15076670

Change-Id: Iaaab320d78197f5d92d5614a69d40868880813a7