[PCv2] Migrate tough_layout_cases page set

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.
+from telemetry.page import cache_temperature as cache_temperature_module
 from telemetry.page import page as page_module
 from telemetry.page import shared_page_state
 from telemetry import story
 
 
 class ToughLayoutCasesPage(page_module.Page):
 
-  def __init__(self, url, page_set):
+  def __init__(self, url, page_set, cache_temperature=None):
     super(ToughLayoutCasesPage, self).__init__(
         url=url, page_set=page_set, credentials_path = 'data/credentials.json',
-        shared_page_state_class=shared_page_state.SharedDesktopPageState)
+        shared_page_state_class=shared_page_state.SharedDesktopPageState,
+        cache_temperature=cache_temperature)
     self.archive_data_file = 'data/tough_layout_cases.json'
 
 
 class ToughLayoutCasesPageSet(story.StorySet):
 
   """
   The slowest layouts observed in the alexa top 1 million sites in  July 2013.
   """
 
-  def __init__(self):
+  def __init__(self, cache_temperatures=None):
     super(ToughLayoutCasesPageSet, self).__init__(
       archive_data_file='data/tough_layout_cases.json',
       cloud_storage_bucket=story.PARTNER_BUCKET)
+    if cache_temperatures is None:
+      cache_temperatures = [cache_temperature_module.ANY]
 
     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.AddStory(ToughLayoutCasesPage(url, self))
+      for temp in cache_temperatures:
+        self.AddStory(ToughLayoutCasesPage(url, self, cache_temperature=temp))