Merge cherrypicks of ['googleplex-android-review.googlesource.com/39283678'] into 26Q2-release.

Change-Id: Idb89bd6b9f0c08cb6b67d10608163cec13fdb373
tree: c9ef7cd0a6741498b03517d4878b65a0fac7c3fb
  1. builtInServices/
  2. tools/
  3. updatableServices/
  4. .gitignore
  5. OWNERS
  6. PREUPLOAD.cfg