Merge cherrypicks of ['googleplex-android-review.googlesource.com/39916693'] into 26Q2-release.

Change-Id: Id6acf038e13262c0371b8f546f523e6cabe32d34
tree: cbe510436ae58599b2a9bbdeab6bf3a00c0cbe0a
  1. apex/
  2. flags/
  3. framework/
  4. ndk/
  5. service/
  6. tests/
  7. OWNERS
  8. PREUPLOAD.cfg
  9. TEST_MAPPING