Revert of Disable service_worker.service_worker_micro_benchmark on Android WebView Perf

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 core import perf_benchmark
 
-from telemetry import benchmark
 from telemetry.core import util
 from telemetry.page import legacy_page_test
 from telemetry.timeline import async_slice as async_slice_module
 from telemetry.timeline import slice as slice_module
 from telemetry.value import scalar
 
 from measurements import timeline_controller
 from metrics import speedindex
 
 
@@ skipping 145 matching lines @@
   detail.
   """
   test = _ServiceWorkerMeasurement
   page_set = page_sets.ServiceWorkerPageSet
 
   @classmethod
   def Name(cls):
     return 'service_worker.service_worker'
 
 
-@benchmark.Disabled('android-webview')  # http://crbug.com/653924
 class ServiceWorkerMicroBenchmarkPerfTest(perf_benchmark.PerfBenchmark):
   """This test is a microbenchmark of service worker.
 
   The page set is a benchmark page that generates many concurrent requests
   handled by a service worker that does respondWith(new Response()). The test
   result is the response times.
   """
   test = _ServiceWorkerMicroBenchmarkMeasurement
   page_set = page_sets.ServiceWorkerMicroBenchmarkPageSet
 
   @classmethod
   def Name(cls):
     return 'service_worker.service_worker_micro_benchmark'
 
   @classmethod
   def ShouldDisable(cls, possible_browser):  # http://crbug.com/597656
       return (possible_browser.browser_type == 'reference' and
               possible_browser.platform.GetDeviceTypeName() == 'Nexus 5X')