Depends on D51054
Summary of the changes here:
- move DOMHelpers.jsm to dom-helpers.js
- remove all unused methods
- converted to a static helper to avoid instanciating DOMHelpers objects for no reason
- updated call sites accordingly
Differential Revision: https://phabricator.services.mozilla.com/D51065
--HG--
rename : devtools/shared/DOMHelpers.jsm => devtools/shared/dom-helpers.js
extra : moz-landing-system : lando
Julian Descottes