Merge "Root-Canal: unify send_event_ call pattern" am: ef224f94 am:...

Merge "Root-Canal: unify send_event_ call pattern" am: ef224f94 am: bbcb9715 am: a38485b2 am: 01928c19

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/1948608

Change-Id: I581cffd72661a3bb79f76557f25574359a4217ca