Android 10.0.0 release 12
[automerger skipped] DO NOT MERGE - Merge pi-dev@5234907 into stage-aosp-master
am: 278d2c558b -s ours
am skip reason: subject contains skip directive

Change-Id: Id5f233358c773f81e5d58d96f98b178fbaaae12e
tree: 0832b1592aa8200e0d8b30639bfea5813030a20d
  1. android/
  2. androidx/
  3. com/
  4. NOTICE.txt
  5. source.properties