Add one more test for VPN usage stats.

(cherry picked from commit 54bb4f4608d91f9c6f4bb1cbfeaa9ac589560cd9)

Covers the case where the majority of traffic through the VPN is
caused by the VPN app itself, and ensures that that traffic is
correctly attributed to the VPN app as opposed to spread between
the other apps that use the VPN.

Bug: 120145746
Test: atest NetworkStatsServiceTest
Change-Id: Ibd7646dc088fa4180abd696e89c3148ff34ce190
Merged-In: Iffd3f95fc2e11d311691a797b010edb38d2ef3c6
1 file changed
tree: 1ed15f1f70b9337005724102f2dcb2ff75a9eed3
  1. core/
  2. services/
  3. tests/