Run dart2js browser tests.

tools/testing/perf_testing/run_perf_tests.py

 #!/usr/bin/python
 
 # 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.
 
 import datetime
 import math             
 try:            
   from matplotlib.font_manager import FontProperties            
@@ skipping 637 matching lines @@
 
 class CommonBrowserTest(RuntimePerformanceTest):
   """Runs this basic performance tests (Benchpress, some V8 benchmarks) in the
   browser."""
 
   def __init__(self, test_runner):
     """Args:
       test_runner: Reference to the object that notifies us when to run."""
     super(CommonBrowserTest, self).__init__(
         self.name(), BrowserTester.get_browsers(False),
-        'browser', ['js', 'frog'],
+        'browser', ['js', 'frog', 'dart2js'],
         self.get_standalone_benchmarks(), test_runner, 
         self.CommonBrowserTester(self),
         self.CommonBrowserFileProcessor(self))
   
   @staticmethod
   def name():
     return 'browser-perf'
 
   @staticmethod
   def get_standalone_benchmarks():
@@ skipping 648 matching lines @@
     while True:
       if runner.has_new_code():
         runner.run_test_sequence()
       else:
         time.sleep(200)
   else:
     runner.run_test_sequence()
 
 if __name__ == '__main__':
   main()