• Bug 1614655 - Part 1: Remove item_key from CommonItemProperties r=jrm… 

    …uizel

Differential Revision: https://phabricator.services.mozilla.com/D66442

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/10897d6106a85383569ac03d8d14907a4c063d9b
    @mikokm @moz-gfx
    mikokm authored and moz-gfx committed Mar 19, 2020
    8f2ae15