Comment 1 for bug 1290535

MIR request for Oxide gives some background: bug #1293681. Essentially, Oxide "is the Chromium Content API wrapped with bindings for Ubuntu. The Chromium Content API contains Blink, V8, etc and is subject to main new security vulnerabilities. The Oxide bindings are written in such a way that we are able to pull new upstream Chromium Content API versions without changing the Oxide API, offering us the ability to track upstream Chromium for security fixes." Oxide is the solution for providing security support to the webapp container for the LTS and we really cannot use webapp-container without it.