[[PageOutline]] = What is a Web-facing API? = Any css property, DOM property, JS object, event, etc... that are accessible from JavaScript, plugins, and other means from the Web content is considered as Web-facing API. = Checklist for reviewing API implemented by major UAs = * Make sure new API does not conflict with the existing spec = Checklist for reviewing API NOT implemented by major UAs = * Make sure CSS property, attribute, element name, etc.. are prefixed with webkit