Merge "Add per-file OWNERS entry for WritableFlags.java" into main am: bf99335670 am: cba50b38ac

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3365800

Change-Id: I6428ca073466f2303e85f7e53e8bdfa5fc6a316d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>