Merge "Add NetworkStack metrics to system API"
am: bda2c4fe17

Change-Id: I686e0ffb8d226d9245f1ef6c04bbc8d586c61e81
tree: 9aa9813e1d8b5b28eabafc9b56f8d56a51c656cb
  1. core/
  2. services/
  3. tests/