Rename XMLHttpRequest to HttpRequest.

samples/swarm/DataSource.dart

 // Copyright (c) 2011, 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.
 
 /** The top-level collection of all sections for a user. */
 // TODO(jimhug): This is known as UserData in the server model.
 class Sections implements Collection<Section> {
   final List<Section> _sections;
 
   Sections(this._sections);
@@ skipping 41 matching lines @@
       sections.add(Section.decode(decoder));
     }
     callback(new Sections(sections));
   }
 
   static void initializeFromUrl(void callback(Sections sections)) {
     if (Sections.runningFromFile) {
       initializeFromData(CannedData.data['user.data'], callback);
     } else {
       // TODO(jmesserly): display an error if we fail here! Silent failure bad.
-      new XMLHttpRequest.get('data/user.data',
+      new HttpRequest.get('data/user.data',
           EventBatch.wrap((request) {
         // TODO(jimhug): Nice response if get error back from server.
         // TODO(jimhug): Might be more efficient to parse request in sections.
         initializeFromData(request.responseText, callback);
       }));
     }
   }
 
   Section findSectionById(String id) {
     return CollectionUtils.find(_sections, (section) => section.id == id);
@@ skipping 145 matching lines @@
   // TODO(jimhug): need to return a lazy Observable<String> and also
   //   add support for preloading.
   void _ensureLoaded() {
     if (_htmlBody !== null) return;
 
     var name = '$dataUri.html';
     if (Sections.runningFromFile) {
       _htmlBody = CannedData.data[name];
     } else {
       // TODO(jimhug): Remove this truly evil synchronoush xhr.
-      final req = new XMLHttpRequest();
+      final req = new HttpRequest();
       req.open('GET', 'data/$name', false);
       req.send();
       _htmlBody = req.responseText;
     }
   }
 
   static Article decodeHeader(Feed source, Decoder decoder) {
     final id = decoder.readString();
     final title = decoder.readString();
     final srcUrl = decoder.readString();
     final hasThumbnail = decoder.readBool();
     final author = decoder.readString();
     final dateInSeconds = decoder.readInt();
     final snippet = decoder.readString();
     final date =
         new Date.fromMillisecondsSinceEpoch(dateInSeconds*1000, isUtc: true);
     return new Article(source, id, date, title, author, srcUrl, hasThumbnail,
         snippet);
   }
 }