webui fixes for 0.8.9

test/perf/perf.dart

 // 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.
 
 /**
  * This is a helper for perf.sh. We try to run all of the Dart code in one
  * instance of the Dart VM to reduce warm-up time.
  */
 library test.perf.perf;
 
 import 'dart:async';
 import 'dart:io';
-import 'dart:json' as json;
-import 'dart:utf' show encodeUtf8;
-import 'dart:isolate';
+import 'dart:convert';
 
 import 'package:unittest/unittest.dart';
 import 'package:unittest/compact_vm_config.dart';
 import 'package:web_ui/dwc.dart' as dwc;
+import 'package:path/path.dart' as path;
 
 
-main() {
-  var args = new Options().arguments;
+main(args) {
   var pattern = new RegExp(args.length > 0 ? args[0] : '.');
 
   useCompactVMConfiguration();
 
-  var lister = new Directory.fromPath(new Path('input')).list();
-  var cwd = new Path(new Directory.current().path);
-  var inputDir = cwd.append('input');
+  var lister = new Directory('input').list();
+  var cwd = Directory.current.path;
+  var inputDir = path.join(cwd, 'input');
   var results = {};
   lister.onFile = (path) {
     if (!path.endsWith('_test.html') || !pattern.hasMatch(path)) return;
     var filename = new Path(path).filename;
     var outDir = cwd.append('output');
     var htmlPath = outDir.append(filename).toString();
     var dartPath = outDir.append('${filename}_bootstrap.dart').toString();
 
     test('drt-compile $filename', () {
       expect(dwc.run(['-o', 'output/', path], printTime: false)
@@ skipping 63 matching lines @@
 _extractResult(String s) {
   var match = _SCORE_REGEX.firstMatch(s);
   return (match != null) ? double.parse(match.group(1)) : null;
 }
 
 Future _writeFile(String path, String text) {
   return new File(path).open(FileMode.WRITE)
       .then((file) => file.writeString(text))
       .then((file) => file.close());
 }