Merge "Restructure the top level of VibrationThread to more clearly guarantee execution of link/unlink pairs, and vibration completion callbacks." into sc-v2-dev am: 5f08589ea1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16191561

Change-Id: Ib753900c386f7e0dff112f595beb7fd5da105412