Example output from the memory profiler: ``` | 1.04 MiB -- url(http://en.wikipedia.org/wiki/Main_Page) | 0.26 MiB -- display-list | 0.78 MiB -- paint-task # new output line | 0.78 MiB -- buffer-map # new output line ``` The buffer maps aren't huge, but they're worth measuring, and it's good to get the memory profiler plumbing into PaintTask. Source-Repo: https://github.com/servo/servo Source-Revision: 10127d6b5a71ee8927413ab746300e32a54b079d