Rename AddPage -> AddUserStory in tools/perf/page_sets/.

tools/perf/page_sets/top_25_repaint.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 page as page_module
 from telemetry.page import page_set as page_set_module
 
 from page_sets import top_pages
 
 
 class TopRepaintPage(page_module.Page):
@@ skipping 42 matching lines @@
         top_pages.LinkedinPage,
         top_pages.WikipediaPage,
         top_pages.TwitterPage,
         top_pages.PinterestPage,
         top_pages.ESPNPage,
         top_pages.WeatherPage,
         top_pages.YahooGamesPage,
     ]
 
     for cl in top_page_classes:
-      self.AddPage(_CreatePageClassWithRepaintInteractions(cl)(self))
+      self.AddUserStory(_CreatePageClassWithRepaintInteractions(cl)(self))
 
     other_urls = [
         # Why: #1 news worldwide (Alexa global)
         'http://news.yahoo.com',
         # Why: #2 news worldwide
         'http://www.cnn.com',
         # Why: #1 world commerce website by visits; #3 commerce in the US by
         # time spent
         'http://www.amazon.com',
         # Why: #1 commerce website by time spent by users in US
         'http://www.ebay.com',
         # Why: #1 Alexa recreation
         'http://booking.com',
         # Why: #1 Alexa reference
         'http://answers.yahoo.com',
         # Why: #1 Alexa sports
         'http://sports.yahoo.com/',
         # Why: top tech blog
         'http://techcrunch.com'
     ]
 
     for url in other_urls:
-      self.AddPage(TopRepaintPage(url, self))
+      self.AddUserStory(TopRepaintPage(url, self))