[automerger skipped] [BOT.3] Add unit test for polling network stats in the...

[automerger skipped] [BOT.3] Add unit test for polling network stats in the coordinator am: 7a29c5ac am: 34461cd2 -s ours am: 67539454 -s ours am: db927334 -s ours

am skip reason: Change-Id Ib1756159a2047c5db7d31359b0f288f840bd1bb1 with SHA-1 7a29c5ac is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11818379

Change-Id: Idd30eb2bd0e5070c462e1d72695bba8fd5243f82