Merge "Switch HealthMonitor references to pointers" am: 41d6a39d3a

Original change: https://android-review.googlesource.com/c/platform/external/gfxstream-protocols/+/2328515

Change-Id: I058ac2f0968e85e490008cf7ef47a5d64f28a9be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>