key_silk_cases/list_animation_simple.html: there should always be exactly 1 layout.

tools/perf/page_sets/key_silk_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 page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class KeySilkCasesPage(page_module.Page):
 
   def __init__(self, url, page_set, run_no_page_interactions):
@@ skipping 45 matching lines @@
     action_runner.ScrollElement(selector='#scrollable')
     interaction.End()
 
 
 class Page2(KeySilkCasesPage):
 
   """ Why: Brings out layer management bottlenecks. """
 
   def __init__(self, page_set, run_no_page_interactions):
     super(Page2, self).__init__(
-      url='http://groupcloned.com/test/plain/list-animation-simple.html',
+      url='file://key_silk_cases/list_animation_simple.html',
       page_set=page_set, run_no_page_interactions=run_no_page_interactions)
 
   def PerformPageInteractions(self, action_runner):
     action_runner.Wait(2)
 
 
 class Page3(KeySilkCasesPage):
 
   """
   Why: Best-known method for fake sticky. Janks sometimes. Interacts badly with
@@ skipping 613 matching lines @@
     self.AddUserStory(Page26(self, run_no_page_interactions))
     self.AddUserStory(SVGIconRaster(self, run_no_page_interactions))
     self.AddUserStory(UpdateHistoryState(self, run_no_page_interactions))
     self.AddUserStory(SilkFinance(self, run_no_page_interactions))
 
     for page in self:
       assert (page.__class__.RunPageInteractions ==
               KeySilkCasesPage.RunPageInteractions), (
               'Pages in this page set must not override KeySilkCasesPage\' '
               'RunPageInteractions method.')