   for (size_t i = 0; i < NetworkErrorLoggingService::kMaxPolicies; ++i) {     service()->OnHeader(MakeOrigin(i), kServerIP_, kHeader_);     clock.Advance(base::TimeDelta::FromSeconds(0));   }   // Make the rest of the test run synchronously.   FinishLoading(true /* load_success */);    EXPECT_EQ(PolicyCount(), NetworkErrorLoggingService::kMaxPolicies);    