Merge "Use WakeupMesage for delayed events in VcnGatewayConnection." am: b244bfa4 am: fa7111f9 am: e060ec81

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1574005

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I3a8e85d22ecc396f9a85df2b8d7b12f3a25bc7cf