Merge "Add unit test for NetworkStatsSubscriptionsMonitor" into rvc-dev am: 70afc75769

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11788484

Change-Id: I43328c82223382978ac3475a195011547f6d0fdc
tree: 312f267ec604ac8e935ea724c1b88a2d13e8913f
  1. core/
  2. services/
  3. tests/