Make browser tests all run from a server instead of the local filesystem.

pkg/intl/test/date_time_format_file_test_stub.dart

Index: pkg/intl/test/date_time_format_file_test_stub.dart
diff --git a/pkg/intl/test/date_time_format_file_test_stub.dart b/pkg/intl/test/date_time_format_file_test_stub.dart
index 76e33aa8cc71753e4fcda6d129b71687b29422f6..e3868c833d4d7dab46da2b5fd5ba643e5015cf38 100644
--- a/pkg/intl/test/date_time_format_file_test_stub.dart
+++ b/pkg/intl/test/date_time_format_file_test_stub.dart
@@ -9,12 +9,12 @@
 library date_time_format_file_test;
 
 import 'dart:async';
-import '../lib/intl.dart';
-import '../lib/date_symbol_data_file.dart';
+import 'package:intl/intl.dart';
+import 'package:intl/date_symbol_data_file.dart';
 import 'dart:io';
 import 'date_time_format_test_core.dart';
 import 'data_directory.dart';
-import '../../../pkg/unittest/lib/unittest.dart';
+import 'package:unittest/unittest.dart';
 
 runWith([Function getSubset]) {
   // Initialize one locale just so we know what the list is.