[automerger skipped] AIDL: Add unit tests to external device disconnection am: 1ba5fd29 -s ours

am skip reason: Merged-In I9c4a045bb5dba2b33acb65f7aba1a447a3dac4d0 with SHA-1 67c2f6d9 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/27582383



Change-Id: I225892c51b990fb7208cbec9d8731b7208475ce0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>