Revert initializing formals change in client code

client/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 122 matching lines @@
 
 /** Provider of a news feed. */
 class Feed {
   String id;
   final String title;
   final String iconUrl;
   final String description;
   ObservableList<Article> articles;
   ObservableValue<bool> error; // TODO(jimhug): Check if dead code.
 
-  Feed(this.id, this.title, this.iconUrl, [description = ''])
-    : this.description = description,
-      articles = new ObservableList<Article>(),
+  Feed(this.id, this.title, this.iconUrl, [this.description = ''])
+    : articles = new ObservableList<Article>(),
       error = new ObservableValue<bool>(false);
 
   static Feed decode(Decoder decoder) {
     final sourceId = decoder.readString();
     final sourceTitle = decoder.readString();
     final sourceIcon = decoder.readString();
     final feed = new Feed(sourceId, sourceTitle, sourceIcon);
     final nItems = decoder.readInt();
 
     for (int i=0; i < nItems; i++) {
@@ skipping 20 matching lines @@
   String textBody; // TODO(jimhug): rename to snipppet.
   final Feed dataSource; // TODO(jimhug): rename to feed.
   String _htmlBody;
   String srcUrl;
   final ObservableValue<bool> unread; // TODO(jimhug): persist to server.
 
   bool error; // TODO(jimhug): Check if this is dead and remove.
 
   Article(this.dataSource, this.id, this.date, this.title, this.author,
       this.srcUrl, this.hasThumbnail, this.textBody,
-      [htmlBody = null, bool unread = true, error = false])
-    : unread = new ObservableValue<bool>(unread),
-      this._htmlBody = htmlBody,
-      this.error = error;
+      [this._htmlBody = null, bool unread = true, this.error = false])
+    : unread = new ObservableValue<bool>(unread);
 
   String get htmlBody() {
     _ensureLoaded();
     return _htmlBody;
   }
 
   String get dataUri() {
     return Uri.encodeComponent(id).replaceAll(
           ',', '%2C').replaceAll('%2F', '/');
   }
@@ skipping 37 matching lines @@
     final srcUrl = decoder.readString();
     final hasThumbnail = decoder.readBool();
     final author = decoder.readString();
     final dateInSeconds = decoder.readInt();
     final snippet = decoder.readString();
     final date = new Date.fromEpoch(dateInSeconds*1000, new TimeZone.utc());
     return new Article(source, id, date, title, author, srcUrl, hasThumbnail,
         snippet);
   }
 }