The following tests:

ArcAuthServiceTest.SuccessfulBackgroundFetch
ArcSessionManagerTest.ManagedChromeAccount
ArcSessionManagerTest.WellKnownConsumerAccount
ArcAuthServiceChildAccountTest.ChildAccountFetch
ArcSessionManagerTest.ManagedAndroidAccount
ArcSessionManagerTest.ConsumerAccount

create TestingProfiles with fake oauth2 token services, assuming that no identity manager exists for those profiles.

If one is created, the tests will crash as the identity manager will see the token for the fake account, but wasn't aware of the fake account in the first place.

Those tests should probably be rewritten to use identity_test_utils.h