Merge "Use ArraySet#add() instead of ArraySet#append()" am: 627c6a5258

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1615181

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1991567f130f3afee6c6bcb78a9254b45e14f6e4
tree: 32295b35d21ece53673593d97bb4e9951ffdbe06
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS