DO NOT MERGE - Merge Android 10 into master

Bug: 139893257
Change-Id: Ibd1bb54bed4310d55ebd9a8e9812129d0c73acd8
tree: 39c44cd6339f80f8059fa6a0c7a79a76613a50cb
  1. build/
  2. common/
  3. tools/
  4. OWNERS
  5. PREUPLOAD.cfg
  6. test_defs.sh