Merge "Use NetworkStatsService to get stats for apps" am: 254dc96566 am: fa7f4015fc
am: 8c920a8b5e

Change-Id: I90ce68a72afbf596e28d987e925795709d24dd52
tree: d3c91a26560d75ac11ca80cb12dd3a3557ae7436
  1. core/
  2. services/
  3. wifi/