Roll Observatory deps (charted -> ^0.3.0)

packages/usage/test/web_test.dart

Index: packages/usage/test/web_test.dart
diff --git a/packages/usage/test/web_test.dart b/packages/usage/test/web_test.dart
index 0b79e898dfb924fcc6d445d92524d2cef5c9a247..5a9cd9815daebae05012c80da5f347f365f106e8 100644
--- a/packages/usage/test/web_test.dart
+++ b/packages/usage/test/web_test.dart
@@ -2,23 +2,20 @@
 // 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.
 
+@TestOn("browser")
 library usage.web_test;
 
 import 'dart:async';
 
-import 'package:grinder/src/webtest.dart';
+import 'package:test/test.dart';
 import 'package:usage/src/usage_impl_html.dart';
-import 'package:unittest/unittest.dart';
 
 import 'hit_types_test.dart' as hit_types_test;
-import 'usage_test.dart' as usage_test;
 import 'usage_impl_test.dart' as usage_impl_test;
+import 'usage_test.dart' as usage_test;
 import 'uuid_test.dart' as uuid_test;
 
 void main() {
-  // Set up the test environment.
-  WebTestConfiguration.setupTestEnvironment();
-
   // Define the tests.
   hit_types_test.defineTests();
   usage_test.defineTests();