Revert of Remove oilevent from tough layout cases.

tools/perf/page_sets/tough_layout_cases.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.
 # pylint: disable=W0401,W0614
 from telemetry.page.actions.all_page_actions import *
 from telemetry.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class ToughLayoutCasesPage(page_module.PageWithDefaultRunNavigate):
@@ skipping 14 matching lines @@
   The slowest layouts observed in the alexa top 1 million sites in  July 2013.
   """
 
   def __init__(self):
     super(ToughLayoutCasesPageSet, self).__init__(
       credentials_path='data/credentials.json',
       user_agent_type='desktop',
       archive_data_file='data/tough_layout_cases.json')
 
     urls_list = [
+      'http://oilevent.com',
       'http://www.muzoboss.ru',
       'http://natunkantha.com',
       'http://www.mossiella.com',
       'http://bookish.com',
       'http://mydiyclub.com',
       'http://amarchoti.blogspot.com',
       'http://picarisimo.es',
       'http://chinaapache.com',
       'http://indoritel.com'
     ]
 
     for url in urls_list:
       self.AddPage(ToughLayoutCasesPage(url, self))