Add 'deadline' to HttpResponse, making it possible to give a max duration for the liveness of the r…

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 802 matching lines @@
   String reasonPhrase;
 
   /**
    * Gets and sets the persistent connection state. The initial value
    * of this property is the persistent connection state from the
    * request.
    */
   bool persistentConnection;
 
   /**
+   * Set and get the [deadline] for the response. The deadline is timed from the
+   * time it's set. Setting a new deadline will override any previous deadline.
+   * When a deadline is exceeded, the response will be closed and any further
+   * data ignored.
+   *
+   * To disable a deadline, set the [deadline] to `null`.
+   *
+   * The [deadline] is `null` by default.
+   */
+  Duration deadline;
+
+  /**
    * Returns the response headers.
    */
   HttpHeaders get headers;
 
   /**
    * Cookies to set in the client (in the 'set-cookie' header).
    */
   List<Cookie> get cookies;
 
   /**
@@ skipping 587 matching lines @@
 
 class RedirectException implements HttpException {
   final String message;
   final List<RedirectInfo> redirects;
 
   const RedirectException(String this.message,
                           List<RedirectInfo> this.redirects);
 
   String toString() => "RedirectException: $message";
 }