Change #library("dom") to #library("dart:dom_deprecated") .

lib/dom/templates/html/dart2js/html_dart2js.darttemplate

 // 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.
 
 // DO NOT EDIT
 // Auto-generated dart:html library.
 
-#library('html');
+#library('dart:html');
 
 #import('dart:isolate');
 #import('dart:json');
 
 $!GENERATED_DART_FILES
 
 #source('../../dom/src/EventListener.dart');
 #source('../../dom/src/KeyLocation.dart');
 #source('../../dom/src/KeyName.dart');
 #source('../../dom/src/ReadyState.dart');
@@ skipping 37 matching lines @@
   if (!window.$dart$isolate$counter) {
     window.$dart$isolate$counter = 1;
   }
   return window.$dart$isolate$counter++;
 ''';
 
 // Fast path to invoke JS send port.
 _callPortSync(int id, message) {
   return JS('var', @'ReceivePortSync.dispatchCall(#, #)', id, message);
 }