• Bug 1595768 - Don't evict blank glyphs to avoid re-rasterizing them c… 

    …ontinuously. r=gw

Depends on D68856

Differential Revision: https://phabricator.services.mozilla.com/D68857

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/f777b2dc12235eb7668fb639f629db1017ad39cc
    @nical @moz-gfx
    nical authored and moz-gfx committed Mar 31, 2020
    f8b4f79