Merge "Add method to NetworkStatsService for UID stats." am: db89ca3c12
am: f61f5ff462

Change-Id: I2527d95000c7500c824ede70f87ecb38e21ed323
tree: e9b04e62403a95c5b3fb41e46d504dd79150b57f
  1. core/
  2. services/
  3. tests/