Please don't. bug 788319 is anyway needed for bug 1620076. The goal is to reuse codepaths, not to add duplicate. GLX should be removed (bug 1129492 comment 24). Surfman already [switched](https://github.com/servo/surfman/commit/ead863065fb3973e24e69f1cba0dc5af5c221b78) to EGL on X11. VAAPI decoding won't stay in the content process (bug 1595994).
Bug 1619523 Comment 3 Edit History
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Please don't. bug 788319 is anyway needed for bug 1620076. The goal is to reuse codepaths, not to add duplicate. GLX should be removed and X11 connections be prevented (bug 1129492 comment 24). Surfman already [switched](https://github.com/servo/surfman/commit/ead863065fb3973e24e69f1cba0dc5af5c221b78) to EGL on X11. VAAPI decoding won't stay in the content process (bug 1595994).