Проверка, чтобы пользователь разрешил использование веб камеры или микрофона в Web Player'е.
This is used to check the result of a previous call to Application.RequestUserAuthorization. Explicit user consent to use features is only needed in the Web Player. In other build targets, this function will always return true.
Note that web player is not supported from 5.4.0 onwards.