Additional flakiness reducing changes. Also rerun DRT on false positive tests.

tools/testing/dart/test_options.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.
 
 #library("test_options_parser");
 
 #import("dart:io");
 
 List<String> defaultTestSelectors =
     const ['dartc', 'samples', 'standalone', 'corelib', 'co19', 'language',
@@ skipping 408 matching lines @@
     }
 
     // Adjust default timeout based on mode and component.
     if (configuration['timeout'] == -1) {
       var timeout = 60;
       switch (configuration['component']) {
         case 'dartc':
         case 'chromium':
         case 'dartium':
         case 'frogium':
+        case 'webdriver':

[Jennifer Messerly, 2012/02/10 00:19:06]

nice :)

           timeout *= 4;
           break;
         case 'leg':
         case 'frog':
           if (configuration['mode'] == 'debug') {
             timeout *= 4;
           }
           break;
         default:
           if (configuration['mode'] == 'debug') {
@@ skipping 55 matching lines @@
         return option;
       }
     }
     print('Unknown test option $name');
     exit(1);
   }
 
 
   List<_TestOptionSpecification> _options;
 }