Remove warning "URI.unescape is obsolete" from actionpack.

Signed-off-by: Santiago Pastorino <santiago@wyeworks.com>

actionpack/lib/action_controller.rb

@@ -8,6 +8,7 @@ module ActionController
   autoload :Caching
   autoload :Metal
   autoload :Middleware
+  autoload :UriParser
 
   autoload_under "metal" do
     autoload :Compatibility

actionpack/lib/action_controller/caching/actions.rb

@@ -141,6 +141,8 @@ def filter(controller)
       end
 
       class ActionCachePath
+        include UriParser
+
         attr_reader :path, :extension
 
         # If +infer_extension+ is true, the cache path extension is looked up from the request's
@@ -163,10 +165,6 @@ def normalize!(path)
           path << ".#{extension}" if extension and !path.ends_with?(extension)
           uri_parser.unescape(path)
         end
-
-        def uri_parser
-          @uri_parser ||= URI.const_defined?(:Parser) ? URI::Parser.new : URI
-        end
       end
     end
   end

actionpack/lib/action_controller/caching/pages.rb

@@ -1,5 +1,4 @@
 require 'fileutils'
-require 'uri'
 require 'active_support/core_ext/class/attribute_accessors'
 
 module ActionController #:nodoc:
@@ -58,6 +57,8 @@ module Pages
       end
 
       module ClassMethods
+        include UriParser
+
         # Expires the page that was cached with the +path+ as a key. Example:
         #   expire_page "/lists/show"
         def expire_page(path)

actionpack/lib/action_controller/test_case.rb

@@ -129,10 +129,6 @@ def to_s() join '/' end
       def self.new_escaped(strings)
         new strings.collect {|str| uri_parser.unescape str}
       end
-
-      def uri_parser
-        @uri_parser ||= URI.const_defined?(:Parser) ? URI::Parser.new : URI
-      end
     end
 
     def assign_parameters(routes, controller_path, action, parameters = {})

actionpack/lib/action_controller/uri_parser.rb

@@ -0,0 +1,9 @@
+require 'uri'
+
+module ActionController #:nodoc:
+  module UriParser
+    def uri_parser
+      @uri_parser ||= URI.const_defined?(:Parser) ? URI::Parser.new : URI
+    end
+  end
+end

actionpack/lib/action_dispatch/routing/route_set.rb

@@ -5,6 +5,8 @@
 module ActionDispatch
   module Routing
     class RouteSet #:nodoc:
+      include ActionController::UriParser
+
       PARAMETERS_KEY = 'action_dispatch.request.path_parameters'
 
       class Dispatcher #:nodoc:
@@ -68,10 +70,6 @@ def merge_default_action!(params)
         def split_glob_param!(params)
           params[@glob_param] = params[@glob_param].split('/').map { |v| uri_parser.unescape(v) }
         end
-
-        def uri_parser
-          @uri_parser ||= URI.const_defined?(:Parser) ? URI::Parser.new : URI
-        end
       end
 
       # A NamedRouteCollection instance is a collection of named routes, and also