vendor/plugins/http_accept_language/init.rb

   1 if defined?(ActionDispatch::Request)
   2   ActionDispatch::Request.send :include, HttpAcceptLanguage
   3 elsif defined?(ActionController::Request)
   4   ActionController::Request.send :include, HttpAcceptLanguage
   5 elsif defined?(ActionController::AbstractRequest)
   6   ActionController::AbstractRequest.send :include, HttpAcceptLanguage
   7 else
   8   ActionController::CgiRequest.send :include, HttpAcceptLanguage
   9 end