add more polymer tests

tools/perf/benchmarks/thread_times.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 from telemetry import test
 
 from benchmarks import silk_flags
 from measurements import thread_times
 
 
 class ThreadTimesKeySilkCases(test.Test):
@@ skipping 27 matching lines @@
   http://www.chromium.org/developers/design-documents/rendering-benchmarks"""
   test = thread_times.ThreadTimes
   page_set = 'page_sets/key_mobile_sites.py'
   options = {'page_label_filter' : 'fastpath'}
 
 class LegacyFastPathBenchmark(ThreadTimesFastPathMobileSites):
   """Same as thread_times.fast_path_mobile_sites but with the old name."""
   @classmethod
   def GetName(cls):
     return "fast_path.key_mobile_sites"
+
+
+class ThreadTimesPolymer(test.Test):
+  """Measures timeline metrics while performing smoothness action on
+  Polymer cases."""
+  test = thread_times.ThreadTimes
+  page_set = "page_sets/polymer.py"
+  options = { 'report_silk_results': True }