• Bug 1624396 - implement centralized shader features list management f… 

    …or WebRender. r=gw,jrmuizel,jnicol

Differential Revision: https://phabricator.services.mozilla.com/D67958

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/178ba8ef059cb90937f458692617a660bc961562
    Lee Salzman @moz-gfx
    Lee Salzman authored and moz-gfx committed Mar 25, 2020
    63e30b2