Merge "Use WakeupMesage for delayed events in VcnGatewayConnection." am: b244bfa4d6 am: fa7111f96a

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I902ed407efa601a1f1ec9ec805aa69da2ccbc22a