Chrome Version: ToT at refs/heads/master@{#554714} ; also seen on M66
OS: Android O+

What steps will reproduce the problem?
(1) Fresh install on Android O or P
(2) Go to notification channel settings (Chrome -> Settings -> Notifications)

What is the expected result?

0 categories deleted or no warning message

What happens instead?

warning message saying '1 category deleted'

I traced this through by adding logging to NotificationChannelsProviderAndroid::CreateChannelIfNecessary and it seems to originate from DSE permissions code. Maybe this is intentional, to create & delete a channel on first launch, but I suspect not.