Merge ab/6749736 in stage.

Bug: 167233921
Merged-In: I7fd118c851e62e6ed17e59b56fbd7d83fb58857f
Change-Id: If329d5e8a11684af1ce0cefb62144e5a9cebf5fa
tree: 66c10a8614bd8fecceaf23b84ae1b1f07fd38b6b
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg