Chrome Browser Extension API - access to the profile being used

[Andreas Mertens]

This isn't exactly web development, but development of a browser extension (Chrome) which in itself uses javascriopt, etc. Has anyone have experience with writing Chrome extensions that can access the specific user profile that a tab is using? I have been pouring over the API documentation and cannot find any way to do this. I know that if I run from the command line I can specify the profile to use with the --profile-directory switch, and it would be useful to be able to do the same from the APIs. Thanks, Andreas