No need to delegate. Simply include the whole RecordIdentifier module.

actionpack/lib/abstract_controller.rb

@@ -1,6 +1,7 @@
 activesupport_path = File.expand_path('../../../activesupport/lib', __FILE__)
 $:.unshift(activesupport_path) if File.directory?(activesupport_path) && !$:.include?(activesupport_path)
 
+require 'action_pack'
 require 'active_support/ruby/shim'
 require 'active_support/dependencies/autoload'
 require 'active_support/core_ext/class/attribute'

actionpack/lib/action_controller/record_identifier.rb

@@ -67,6 +67,8 @@ module ActionController
       end
     end
 
+  protected
+
     # Returns a string representation of the key attribute(s) that is suitable for use in an HTML DOM id.
     # This can be overwritten to customize the default generated string representation if desired.
     # If you need to read back a key from a dom_id in order to query for the underlying database record,

actionpack/lib/action_dispatch.rb

@@ -27,6 +27,8 @@ $:.unshift(activesupport_path) if File.directory?(activesupport_path) && !$:.inc
 require 'active_support'
 require 'active_support/dependencies/autoload'
 
+require 'action_pack'
+require 'active_model'
 require 'rack'
 
 module Rack

actionpack/lib/action_view.rb

@@ -23,6 +23,7 @@
 
 activesupport_path = File.expand_path('../../../activesupport/lib', __FILE__)
 $:.unshift(activesupport_path) if File.directory?(activesupport_path) && !$:.include?(activesupport_path)
+
 require 'active_support/ruby/shim'
 require 'active_support/core_ext/class/attribute_accessors'
 

actionpack/lib/action_view/helpers.rb

@@ -20,7 +20,6 @@ module ActionView #:nodoc:
     autoload :NumberHelper
     autoload :PrototypeHelper
     autoload :RawOutputHelper
-    autoload :RecordIdentificationHelper
     autoload :RecordTagHelper
     autoload :SanitizeHelper
     autoload :ScriptaculousHelper
@@ -51,7 +50,6 @@ module ActionView #:nodoc:
     include NumberHelper
     include PrototypeHelper
     include RawOutputHelper
-    include RecordIdentificationHelper
     include RecordTagHelper
     include SanitizeHelper
     include ScriptaculousHelper

actionpack/lib/action_view/helpers/record_identification_helper.rb

@@ -1,23 +0,0 @@
-module ActionView
-  # = Action View Record Identification Helpers
-  #
-  # See ActionController::RecordIdentifier for documentation on these methods.
-  module Helpers
-    module RecordIdentificationHelper
-      # See ActionController::RecordIdentifier.partial_path -- this is just a delegate to that for convenient access in the view.
-      def partial_path(*args, &block)
-        ActionController::RecordIdentifier.partial_path(*args, &block)
-      end
-
-      # See ActionController::RecordIdentifier.dom_class -- this is just a delegate to that for convenient access in the view.
-      def dom_class(*args, &block)
-        ActionController::RecordIdentifier.dom_class(*args, &block)
-      end
-
-      # See ActionController::RecordIdentifier.dom_id -- this is just a delegate to that for convenient access in the view.
-      def dom_id(*args, &block)
-        ActionController::RecordIdentifier.dom_id(*args, &block)
-      end
-    end
-  end
-end

actionpack/lib/action_view/helpers/record_tag_helper.rb

@@ -1,7 +1,11 @@
+require 'action_controller/record_identifier'
+
 module ActionView
   # = Action View Record Tag Helpers
   module Helpers
     module RecordTagHelper
+      include ActionController::RecordIdentifier
+
       # Produces a wrapper DIV element with id and class parameters that
       # relate to the specified Active Record object. Usage example:
       #