3 files changed, 11 insertions, 11 deletions
diff --git a/actionpack/lib/action_controller/metal/mime_responds.rb b/actionpack/lib/action_controller/metal/mime_responds.rb
index 88a4818c16..09aa76f1ca 100644
--- a/actionpack/lib/action_controller/metal/mime_responds.rb
+++ b/actionpack/lib/action_controller/metal/mime_responds.rb
@@ -229,14 +229,14 @@ module ActionController #:nodoc:
         @responses = {}
         @variant = variant
 
-        mimes.each { |mime| @responses["Mime::#{mime.upcase}".constantize] = nil }
+        mimes.each { |mime| @responses[Mime::Type[mime.to_sym.upcase]] = nil }
       end
 
       def any(*args, &block)
         if args.any?
           args.each { |type| send(type, &block) }
         else
-          custom(Mime::ALL, &block)
+          custom(Mime::Type[:ALL], &block)
         end
       end
       alias :all :any
@@ -251,7 +251,7 @@ module ActionController #:nodoc:
       end
 
       def response
-        response = @responses.fetch(format, @responses[Mime::ALL])
+        response = @responses.fetch(format, @responses[Mime::Type[:ALL]])
         if response.is_a?(VariantCollector) # `format.html.phone` - variant inline syntax
           response.variant
         elsif response.nil? || response.arity == 0 # `format.html` - just a format, call its block
diff --git a/actionpack/lib/action_controller/metal/renderers.rb b/actionpack/lib/action_controller/metal/renderers.rb
index cb74c4f0d4..d867c97b46 100644
--- a/actionpack/lib/action_controller/metal/renderers.rb
+++ b/actionpack/lib/action_controller/metal/renderers.rb
@@ -68,11 +68,11 @@ module ActionController
     #   ActionController::Renderers.add :csv do |obj, options|
     #     filename = options[:filename] || 'data'
     #     str = obj.respond_to?(:to_csv) ? obj.to_csv : obj.to_s
-    #     send_data str, type: Mime::CSV,
+    #     send_data str, type: Mime::Type[:CSV],
     #       disposition: "attachment; filename=#{filename}.csv"
     #   end
     #
-    # Note that we used Mime::CSV for the csv mime type as it comes with Rails.
+    # Note that we used Mime::Type[:CSV] for the csv mime type as it comes with Rails.
     # For a custom renderer, you'll need to register a mime type with
     # <tt>Mime::Type.register</tt>.
     #
@@ -116,24 +116,24 @@ module ActionController
       json = json.to_json(options) unless json.kind_of?(String)
 
       if options[:callback].present?
-        if content_type.nil? || content_type == Mime::JSON
-          self.content_type = Mime::JS
+        if content_type.nil? || content_type == Mime::Type[:JSON]
+          self.content_type = Mime::Type[:JS]
         end
 
         "/**/#{options[:callback]}(#{json})"
       else
-        self.content_type ||= Mime::JSON
+        self.content_type ||= Mime::Type[:JSON]
         json
       end
     end
 
     add :js do |js, options|
-      self.content_type ||= Mime::JS
+      self.content_type ||= Mime::Type[:JS]
       js.respond_to?(:to_js) ? js.to_js(options) : js
     end
 
     add :xml do |xml, options|
-      self.content_type ||= Mime::XML
+      self.content_type ||= Mime::Type[:XML]
       xml.respond_to?(:to_xml) ? xml.to_xml(options) : xml
     end
   end
diff --git a/actionpack/lib/action_controller/metal/rendering.rb b/actionpack/lib/action_controller/metal/rendering.rb
index 00b551af94..1ecccf9864 100644
--- a/actionpack/lib/action_controller/metal/rendering.rb
+++ b/actionpack/lib/action_controller/metal/rendering.rb
@@ -64,7 +64,7 @@ module ActionController
     end
 
     def _set_html_content_type
-      self.content_type = Mime::HTML.to_s
+      self.content_type = Mime::Type[:HTML].to_s
     end
 
     def _set_rendered_content_type(format)