Enable page_cycler_v2 and loading.mobile on webview

tools/perf/benchmarks/loading.py

 # Copyright 2016 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 core import perf_benchmark
 import page_sets
 
 import ct_benchmarks_util
 from benchmarks import page_cycler_v2
 from telemetry import benchmark
@@ skipping 12 matching lines @@
     tbm_options = timeline_based_measurement.Options()
     page_cycler_v2.AugmentOptionsForLoadingMetrics(tbm_options)
     return tbm_options
 
   @classmethod
   def ShouldDisable(cls, possible_browser):
     # crbug.com/619254
     if possible_browser.browser_type == 'reference':
       return True
 
-    # crbug.com/651188
-    if possible_browser.browser_type == 'android-webview':
-      return True
-
     return False
 
   @classmethod
   def Name(cls):
     return 'loading.mobile'
 
   def CreateStorySet(self, options):
     return page_sets.LoadingMobileStorySet(
         cache_temperatures=[cache_temperature.ANY],
         traffic_settings=[traffic_setting.NONE, traffic_setting.REGULAR_3G])
@@ skipping 30 matching lines @@
         help='Traffic condition (string). Default to "%%default". Can be: %s' %
          ', '.join(cls._ALL_NET_CONFIGS))
 
   def CreateStorySet(self, options):
     def Wait(action_runner):
       action_runner.Wait(options.wait_time)
     return page_sets.CTPageSet(
       options.urls_list, options.user_agent, options.archive_data_file,
       traffic_setting=options.traffic_setting,
       run_page_interaction_callback=Wait)