[ServiceWorker] Re-enable service_worker.service_worker perf test.

tools/perf/benchmarks/service_worker.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.
 
 import collections
 import page_sets
 import re
 
 from measurements import timeline_controller
 from metrics import speedindex
@@ skipping 155 matching lines @@
     browser_process = self._timeline_controller.model.browser_process
     filter_text = '(RegisterServiceWorker|'\
                   'UnregisterServiceWorker|'\
                   'ProcessAllocate|'\
                   'FindRegistrationForDocument|'\
                   'DispatchFetchEvent)'
     timeline_metric.AddResultsOfEvents(
         browser_process, 'IOThread', filter_text , results)
 
 
-# TODO(simonhatch): Temporarily disabling (http://crbug.com/433943)
-@benchmark.Disabled
 class ServiceWorkerPerfTest(benchmark.Benchmark):
   """Performance test on public applications using ServiceWorker"""
   test = _ServiceWorkerMeasurement
   page_set = page_sets.ServiceWorkerPageSet
 
 
 class ServiceWorkerMicroBenchmarkPerfTest(benchmark.Benchmark):
   """Service Worker performance test using a micro benchmark page set"""
   test = _ServiceWorkerMicroBenchmarkMeasurement
   page_set = page_sets.ServiceWorkerMicroBenchmarkPageSet