merge_pr_16424
Source: https://github.com/tidoust/reffy-reports/blob/47f8565/whatwg/idl/animation-worklet.idl Build: https://travis-ci.org/tidoust/reffy-reports/builds/522654478
Source: https://github.com/tidoust/reffy-reports/blob/47f8565/whatwg/idl/animation-worklet.idl Build: https://travis-ci.org/tidoust/reffy-reports/builds/522654478