Having recently done this what I like to do is perform some actions, and follow it through the codebase. So for example on a web project, what happens when I hi

Having recently done this what I like to do is perform some actions, and follow it through the codebase. So for example on a web project, what happens when I hit the index page? First it hits the router/dispatcher, it is handed off to this controller, the controller calls the database. Etc. So for the chromium project I'd try to work my way through, by performing an action. Then asking how it is performed, and follow the code through. Hope this helps.