[automerger skipped] [SP18.4] Add unit test for polling network stats in OffloadController am: 14722baf0d am: b6ab822c32 -s ours

am skip reason: Change-Id I9b9c9c096a2366aaf383d5c2d567db6682f02dad with SHA-1 9c50628e95 is in history

Change-Id: Ia2cd16930f76597fd3d061008cc6da52e0a9c0a6
tree: 1026a08bb4c4dddb4cc1d42f4832a60062b7042e
  1. Tethering/