DO NOT MERGE - Merge Android 10 into master

Bug: 139893257
Change-Id: I02b83849a0fdd86253bb210b8ffef9e2aa800367
tree: 4d7cd45b04f71591ec7b94b06e5f0a9ae5e3577c
  1. OWNERS
  2. PREUPLOAD.cfg
  3. library/