5d540d1410
This patch extracts into its own independent test a test sub-block looking
for a race condition when not waiting on handlers to become idle:
there is no way to prevent the race from not happening when looking for
it this way. This makes the test flakky.
This new independent test is tagged with @FlakkyTest(tolerance = 3).
Test: ConnectivityServiceTest passes, with higher probability.
Bug: 31479480
(cherry picked from commit c8c1027762)
Change-Id: I3c702bd981ed80ed606be0fb52d61eb3d7195a6f