Explicitly setting names for story sets in page_cycler_v2 benchmarks

tools/perf/page_sets/oopif_basic_page_set.py

 # Copyright 2015 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
 from telemetry import story
 
 class OopifBasicPageSet(story.StorySet):
   """ Basic set of pages used to measure performance of out-of-process
   iframes.
   """
 
   def __init__(self, cache_temperatures=None):
     super(OopifBasicPageSet, self).__init__(
         archive_data_file='data/oopif_basic.json',
-        cloud_storage_bucket=story.PARTNER_BUCKET)
+        cloud_storage_bucket=story.PARTNER_BUCKET,
+        verify_names=True)
     if cache_temperatures is None:
       cache_temperatures = [cache_temperature_module.ANY]
 
     urls = [
         'http://www.cnn.com',
         'http://www.ebay.com',
         'http://booking.com',
         # Disabled because it causes flaky runs https://crbug.com/522870
         #'http://www.rei.com/',
         'http://www.fifa.com/',
         # Disabled because it is flaky on Windows and Android
         #'http://arstechnica.com/',
         'http://www.nationalgeographic.com/',
         # Cross-site heavy! Enable them once they render without crashing.
         #'http://www.nba.com/',
         #'http://www.phonearena.com/',
         #'http://slickdeals.net/',
         #'http://www.163.com/',
     ]
 
     for url in urls:
       for temp in cache_temperatures:
-        self.AddStory(page.Page(url, self, cache_temperature=temp))
+        self.AddStory(page.Page(url, self, cache_temperature=temp, name=url))