[automerger skipped] Effect AIDL: fix several bugs in Visualizer AIDL am: 2279660b -s ours

am skip reason: Merged-In I3404073ddb61d9fdb48d2ddcdb80fdd5c408e3e6 with SHA-1 2caf8fd2 is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2847796



Change-Id: I31941ebaa7de591769857a8045f1771d0423adb3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>