Bug 1605380 - Avoid calculating snapped bounds for some display items…
de77f3b
… twice r=aosmond Differential Revision: https://phabricator.services.mozilla.com/D57976 [wrupdater] From https://hg.mozilla.org/mozilla-central/rev/c9cbe7b9ad94d9b1e488bc4e650b053d3e06a646
