Add normalizePath to Uri class.

sdk/lib/io/http.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.io;
 
 /**
  * HTTP status codes.
  */
 abstract class HttpStatus {
@@ skipping 1779 matching lines @@
   /**
    * Get information about the client connection. Returns [:null:] if the socket
    * is not available.
    */
   HttpConnectionInfo get connectionInfo;
 }
 
 
 /**
  * HTTP response for a client connection.
-
+ *
  * The body of a [HttpClientResponse] object is a
  * [Stream] of data from the server. Listen to the body to handle
  * the data and be notified when the entire body is received.
  *
  *     new HttpClient().get('localhost', 80, '/file.txt')
  *          .then((HttpClientRequest request) => request.close())
  *          .then((HttpClientResponse response) {
  *            response.transform(UTF8.decoder).listen((contents) {
  *              // handle data
  *            });
@@ skipping 199 matching lines @@
 class RedirectException implements HttpException {
   final String message;
   final List<RedirectInfo> redirects;
 
   const RedirectException(this.message, this.redirects);
 
   String toString() => "RedirectException: $message";
 
   Uri get uri => redirects.last.location;
 }