That's a bit out of date, because libsecret is supported as well: https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/password_manager/na

That's a bit out of date, because libsecret is supported as well: https://code.google.com/p/chromium/codesearch#chromium/src/chrome/browser/password_manager/native_backend_libsecret.h https://code.google.com/p/chromium/codesearch#chromium/src/c... But yeah, it pretty much looks for any sort of secure credential manager and falls back to the fixed key only when nothing is available.