```JSRef<Attr>``` does not require allocating a ```DOMString``` for value, which are unused in most cases. It also provides more access to ```Attr``` data.
Source-Repo: https://github.com/servo/servo
Source-Revision: 590a93120a26ab6ea787831d7ba08c47423148bc
This implements a general framework for legacy presentational attributes
to the DOM and style calculation, so that adding more of them later will
be straightforward.
Source-Repo: https://github.com/servo/servo
Source-Revision: 0aeecfc41d5f0c637960fcddf87cc2db3e5efeea
The biggest language change is that enum variants now also reserve (for future use) a name in the type namespace, which must not collide with other types. Some things were renamed, and others qualified as `module::name`.
Source-Repo: https://github.com/servo/servo
Source-Revision: 7409685589c550ee7a9f94182f511acddab4c6fd
