Tormium
Tormium is a python script made for browsing through the tor network using chromium, by using tormium you are using chromium without leaving history in the browser. Tormium won't change your network proxy, tormium will only proxify the chromium window started by it.
http://www.youtube.com/watch?v=zqM4bDmEaQs <-- Video of Tormium in Use