Ruby 1.9 compat: don't rely on lexical scoping since the included block is called from dependency_module

actionpack/lib/action_controller/new_base/render_options.rb

@@ -41,7 +41,7 @@ module ActionController
 
     included do
       extend ActiveSupport::DependencyModule
-      depends_on RenderOptions
+      depends_on ::ActionController::RenderOptions
 
       def self.register_renderer(name)
         included { _add_render_option(name) }
@@ -83,4 +83,4 @@ module ActionController
       end
     end
   end
-end
+end