5c5b83fcd5
This change addresses the following API council feedback. - Remove all constants from TvContentRating. Instead this class becomes a general parser for a tuple of "rating domain"+type+subtype(s). - Instead of constants in the API, the rating definitions should come from parsed XML meta-data tied to a TvInputService entry in the AndroidManifest. This XML should define a ranked order of the rating constants along with @string references for displaying in the Settings UI. Mention that the "rating domain" should be scoped similar to a package name, for example "com.youtube.ratings". - For system-defined rating types (like US, Korea, etc) we should parse this same XML format, but it may come from a hard-coded XML resource (since they aren't tied to a single TvInputService.) - Thoroughly document the built-in supported types in javadoc on TvContentRating. Change-Id: I0a9526c73c8ca67fd0eeac63f3c63c05657a45e3