when Chrome requests OS X keychain password

Is there any way to know which service/site/app is making Chrome request my keychain password?
I'm getting this requests every few minutes even when no tabs are open!

Thank you very much!

The keychain request should tell you what service is asking for access. If not, click the details drop down in the left hand corner. If you're unsure what the service is, post back here and we'll help you determine what it is.

That "details" dropdown is not available... The only thing I get is this small pop-up...