The worker itself is essentially a wrapper around the
abusefilterchecksyntax API.
NOTE: As written in code comments, basically the whole
worker-abusefilter.js script consists of boilerplate code. You can
verify this by diffing this file and 6cb8a9cae1/modules/ace/worker-json.js
This means that there are only ~60 lines of code to review in that file.
Bug: T187686
Change-Id: I8950fcd5917ba226dda80b47b2bb713e685fad36