mono/MonoGame — pull request #670 by Inverness (2012-08-13 21:36:37+00:00)
Title: Added virtual methods to ContentManager to allow for user's non-content file types.

I found myself unable to properly add support for loading my own content files from non-content classes as MonoGame does when XNB files are unavailable, so I added virtual methods to ContentManager that makes this possible.