Merge "Add OWNERS block to manage slippage during migration." am: d2a5e78d7c am: 056bac096f am: fd3ca20465

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1950196

Change-Id: I9a2de5b8edc28e49429e89c96e861d8ba910d312
tree: 709c2edec75bf29d51a6d464ed3d6516815d82ee
  1. framework/
  2. service/