Merge "Add demo code for testing" into main am: 4db54e9935 am: b8024771a9 am: 010f8cf43c am: 75323cbe16 am: 23eb1a5e33

Original change: https://android-review.googlesource.com/c/platform/development/+/2712013

Change-Id: I40becc80821acd6acd211ee1c983fda79d16290b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>