Looking at https://build.chromium.org/p/chromium.fyi/builders/EarlGreyiOS, PasswordsSettingsTestCase/testDeletionInDetailView and its predecessor PasswordsSettingsTestCase/testDeletion are flaky. The tests so far ultimately pass, but sometimes on the 1st or 2nd retry only.

The test attempts to delete a password in the detail password view. That happens through an alert and should dismiss both the alert and the detail password view. Looking at the logs (sample attached), when the test is looking to find the detail view removed and replaced with the password list view, it still finds the detail view.

It sounds like draining the UI thread might be in order for that. Unfortunately, this is hard to check with 100% confidence, because it does not reproduce on my local machine (simulator). It does reproduce on the above linked bot consistently, and it also reproduced on https://uberchromegw.corp.google.com/i/internal.bling.tryserver/builders/iphone10-simulator-x64 in the past. When I tried investigating, there was no flake on that bot (I did not find a way to try on EarlGreyiOS without landing the CL first).

(I am applying RVG for the internal bot URL.)