Fix HttpRequest example.

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 859 matching lines @@
  *       onError: handleError);    // listen() failed.
  *     }).catchError(handleError);
  *
  * An HttpRequest object provides access to the associated [HttpResponse]
  * object through the response property.
  * The server writes its response to the body of the HttpResponse object.
  * For example, here's a function that responds to a request:
  *
  *     void handleGetRequest(HttpRequest req) {
  *       HttpResponse res = req.response;
- *       var body = [];
- *       req.listen((List<int> buffer) => body.add(buffer),
- *         onDone: () {
- *           res.write('Received ${body.length} for request ');
- *           res.write(' ${req.method}: ${req.uri.path}');
- *           res.close();
- *         },
- *         onError: handleError);
+ *       res.write('Received request ${req.method}: ${req.uri.path}');
+ *       res.close();
  *     }
  */
 abstract class HttpRequest implements Stream<List<int>> {
   /**
    * The content length of the request body.
    *
    * If the size of the request body is not known in advance,
    * this value is -1.
    */
   int get contentLength;
@@ skipping 1019 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;
 }