We can merge it but it doesn't make things work more than before. Mostly filing it for comments, especially the `description` method. If you feel it's too verbose I guess the way to go would be to properly formalise all types involved in the devtools server, but that's going to be a gigantic task.
Source-Repo: https://github.com/servo/servo
Source-Revision: 4a016599835ec22738dec700750a361fdeaf3507
This doesn't fix the performance tab, but at least lets Firefox initialise the devtools window.
Source-Repo: https://github.com/servo/servo
Source-Revision: 5faab270c6babaaa5ee6b75fecf537e7a648d752
