included (ActionController::RequestForgeryProtection)

    # File lib/action_controller/request_forgery_protection.rb, line 6
        def self.included(base)
          base.class_eval do
            class_inheritable_accessor :request_forgery_protection_options
            self.request_forgery_protection_options = {}
            helper_method :form_authenticity_token
            helper_method :protect_against_forgery?
          end
          base.extend(ClassMethods)
        end