Fix Dromaeo performance 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
 import optparse
 import os
@@ skipping 409 matching lines @@
           self.revision_dict[platform][f][val] = []
           self.values_dict[platform][f][val] = []
         for extra_metric in extra_metrics:
           self.revision_dict[platform][f][extra_metric] = []
           self.values_dict[platform][f][extra_metric] = []
 
   def IsValidCombination(self, platform, variant):
     """Check whether data should be captured for this platform/variant
     combination.
     """
+    if variant == 'dart_html' and platform != 'dartium':
+      return False
     if platform == 'dartium' and (variant == 'js' or variant == 'dart2js_html'):
       # Testing JavaScript performance on Dartium is a waste of time. Should be
       # same as Chrome.
       return False
     if (platform == 'safari' and variant == 'dart2js' and
         int(self.test_runner.current_revision_num) < 10193):
       # In revision 10193 we fixed a bug that allows Safari 6 to run dart2js
       # code. Since we can't change the Safari version on the machine, we're
       # just not running
       # for this case.
@@ skipping 689 matching lines @@
       else:
         if runner.backfill:
           results_set = FillInBackHistory(results_set, runner)
         else:
           time.sleep(200)
   else:
     runner.RunTestSequence()
 
 if __name__ == '__main__':
   main()