Fix dartdoc change with XMLHttpRequest

lib/html/doc/html.dartdoc

 // Copyright (c) 2012, 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.
 
 // Fake dart:html library for documentation.
 
 /// The Dart HTML5 Library.
 #library("dart:html");
 
 #source('interface/AbstractWorker.dartdoc');
@@ skipping 154 matching lines @@
 #source('interface/Geoposition.dartdoc');
 #source('interface/HashChangeEvent.dartdoc');
 #source('interface/HeadElement.dartdoc');
 #source('interface/HeadingElement.dartdoc');
 #source('interface/History.dartdoc');
 #source('interface/HRElement.dartdoc');
 #source('interface/HTMLAllCollection.dartdoc');
 #source('interface/HTMLCollection.dartdoc');
 #source('interface/HtmlElement.dartdoc');
 #source('interface/HTMLOptionsCollection.dartdoc');
+#source('interface/HttpRequest.dartdoc');
+#source('interface/HttpRequestException.dartdoc');
+#source('interface/HttpRequestProgressEvent.dartdoc');
+#source('interface/HttpRequestUpload.dartdoc');
 #source('interface/IceCallback.dartdoc');
 #source('interface/IceCandidate.dartdoc');
 #source('interface/IDBAny.dartdoc');
 #source('interface/IDBCursor.dartdoc');
 #source('interface/IDBCursorWithValue.dartdoc');
 #source('interface/IDBDatabase.dartdoc');
 #source('interface/IDBDatabaseException.dartdoc');
 #source('interface/IDBFactory.dartdoc');
 #source('interface/IDBIndex.dartdoc');
 #source('interface/IDBKey.dartdoc');
@@ skipping 355 matching lines @@
 #source('interface/WebKitCSSFilterValue.dartdoc');
 #source('interface/WebKitMutationObserver.dartdoc');
 #source('interface/WebKitNamedFlow.dartdoc');
 #source('interface/WebSocket.dartdoc');
 #source('interface/WheelEvent.dartdoc');
 #source('interface/Window.dartdoc');
 #source('interface/WorkerContext.dartdoc');
 #source('interface/Worker.dartdoc');
 #source('interface/WorkerLocation.dartdoc');
 #source('interface/WorkerNavigator.dartdoc');
-#source('interface/XMLHttpRequest.dartdoc');
-#source('interface/XMLHttpRequestException.dartdoc');
-#source('interface/XMLHttpRequestProgressEvent.dartdoc');
-#source('interface/XMLHttpRequestUpload.dartdoc');
 #source('interface/XMLSerializer.dartdoc');
 #source('interface/XPathEvaluator.dartdoc');
 #source('interface/XPathException.dartdoc');
 #source('interface/XPathExpression.dartdoc');
 #source('interface/XPathNSResolver.dartdoc');
 #source('interface/XPathResult.dartdoc');
 #source('interface/XSLTProcessor.dartdoc');
 
 // Implementation files that appear to be necessary to load the sources.
 
@@ skipping 38 matching lines @@
  * The top-level Window object.
  */
 Window get window() => null;
 
 /**
  * The top-level Document object.
  */
 Document get document() => null;
 
 typedef void EventListener(Event event);