Comment 2 for bug 1797446

Keystone shouldn't need to import webob is the point. Keystone should be able to say "hey, get a token like X and validate a token like Y" and that's it. There should be no "import this thing, subclass it and lean on webob to make my subclassing work".

This is all because Keystone no longer uses webob in any meaningful outside of AuthContextMiddleware [once the last patch for Flaskification lands]