He's probably as p|$$ed off as you because you don't seem to get the point he's trying to make and you're p|$$ed off because he doesn't understand yours!!!
I did say "Gnome-keyring stores passwords for websites and other passwords, like ssh, gpg, etc. The keyring is unlocked when you login into the system and does not require to enter master password again. That is normal behavior." The whole point of my question is that the keyring is not unlocked, so I can't get to the stored passwords. Can you read that?"
"After triggering the password dialog in this manner, and refreshing the relevant pages in Chromium, passwords and credentials are filled in as expected"
"I'm running into inconvenience because the global password manager (gnome keyring?) that should fill in auth dialogs in Chromium doesn't trigger. For example, I'm accessing some webpage that asks for basic HTTP auth, or simply a login form I've already accessed and for which Chromium has already stored my credentials."
not much... I did spend a few minutes in pleasant conversation, but I've solved nothing, I'll still see him get points for a useless answer, I'll still have the good memories of the previous chat, and I still don't know how to make my question clearer.