During debugging, I found it useful to hook all task creation in a central location, and util::task was the perfect place for it. r? @pcwalton (or maybe someone else, I'm kinda sending you a bunch of reviews today because I don't know who better to give them to) Source-Repo: https://github.com/servo/servo Source-Revision: ff06be91ebe770290ba912ee71a303810aa62cea