• Bug 1612941 - properly detect GL_ARB_texture_swizzle extension in WR.… 

    … r=gw,kvark

Differential Revision: https://phabricator.services.mozilla.com/D65596

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/5097c1d4e3d7751134b60a8ecb775382a5f6ae44
    Lee Salzman @moz-gfx
    Lee Salzman authored and moz-gfx committed Mar 14, 2020
    84bab7f