Merge "Use UserHandles instead of userId integers." am: f2abf2692c am: 883841d201

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1589632

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5652b8847b094ef009d3ace14948e9122339ed21
tree: 71493c85a8525a9cbf04e77a18b3cd5ef93e8f5f
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS