key_mobile_sites_smooth: Reload pages before scrolling for LinkedIn and Wowwiki

tools/perf/page_sets/key_mobile_sites_smooth.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 key_mobile_sites_pages
 
 
 def _IssueMarkerAndScroll(action_runner):
@@ skipping 22 matching lines @@
     self.archive_data_file = 'data/key_mobile_sites.json'
     self.action_on_load_complete = action_on_load_complete
 
   def RunPageInteractions(self, action_runner):
     if self.action_on_load_complete:
         action_runner.WaitForJavaScriptCondition(
             'document.readyState == "complete"', 30)
     _IssueMarkerAndScroll(action_runner)
 
 
+class LinkedInSmoothPage(key_mobile_sites_pages.LinkedInPage):
+
+  def __init__(self, page_set):
+    super(LinkedInSmoothPage, self).__init__(page_set=page_set)
+
+  # Linkedin has expensive shader compilation so it can benefit from shader
+  # cache from reload.
+  def RunNavigateSteps(self, action_runner):
+    super(LinkedInSmoothPage, self).RunNavigateSteps(action_runner)
+    # Give it time to build cache.
+    action_runner.Wait(5)

[nednguyen, 2015/03/03 17:10:10]

I don't like random wait time. Please find another way to do the "wait long
enough to build cache" operation.

[Yufeng Shen (Slow to review), 2015/03/03 19:03:28]

Done.

+    action_runner.ReloadPage()
+    super(LinkedInSmoothPage, self).RunNavigateSteps(action_runner)
+
+
+# Why: Mobile wiki

[nednguyen, 2015/03/03 17:10:10]

Make this comment the class's docstring

[Yufeng Shen (Slow to review), 2015/03/03 19:03:28]

Done.

+class WowwikiSmoothPage(KeyMobileSitesSmoothPage):
+
+  def __init__(self, page_set):
+    super(WowwikiSmoothPage, self).__init__(
+      url='http://www.wowwiki.com/World_of_Warcraft:_Mists_of_Pandaria',
+      page_set=page_set)
+
+  # Wowwiki has expensive shader compilation so it can benefit from shader
+  # cache from reload.
+  def RunNavigateSteps(self, action_runner):
+    super(WowwikiSmoothPage, self).RunNavigateSteps(action_runner)
+    # Give it time to build cache.
+    action_runner.Wait(5)
+    action_runner.ReloadPage()
+    super(WowwikiSmoothPage, self).RunNavigateSteps(action_runner)
+
+
 class GmailSmoothPage(key_mobile_sites_pages.GmailPage):
 
   def RunPageInteractions(self, action_runner):
     interaction = action_runner.BeginGestureInteraction(
         'ScrollAction', is_smooth=True)
     action_runner.ScrollElement(element_function=(
         'document.getElementById("views").childNodes[1].firstChild'))
     interaction.End()
     interaction = action_runner.BeginGestureInteraction(
         'ScrollAction', is_smooth=True)
@@ skipping 69 matching lines @@
       bucket=page_set_module.PARTNER_BUCKET)
 
 
     # Add pages with predefined classes that contain custom navigation logic.
     predefined_page_classes = [
       key_mobile_sites_pages.CapitolVolkswagenPage,
       key_mobile_sites_pages.TheVergeArticlePage,
       key_mobile_sites_pages.CnnArticlePage,
       key_mobile_sites_pages.FacebookPage,
       key_mobile_sites_pages.YoutubeMobilePage,
-      key_mobile_sites_pages.LinkedInPage,
       key_mobile_sites_pages.YahooAnswersPage,
       key_mobile_sites_pages.GoogleNewsMobilePage,
     ]
     for page_class in predefined_page_classes:
       self.AddUserStory(
         _CreatePageClassWithSmoothInteractions(page_class)(self))
 
+    self.AddUserStory(
+      _CreatePageClassWithSmoothInteractions(LinkedInSmoothPage)(self))
+    self.AddUserStory(WowwikiSmoothPage(self))
+
     # Add pages with custom page interaction logic.
 
     # Page behaves non-deterministically, replaced with test version for now.
     # self.AddUserStory(GroupClonedSmoothPage(self))
     # mean_input_event_latency cannot be tracked correctly for
     # GroupClonedListImagesPage.
     # See crbug.com/409086.
     # self.AddUserStory(GroupClonedListImagesSmoothPage(self))
     self.AddUserStory(GoogleNewsMobile2SmoothPage(self))
     self.AddUserStory(AmazonNicolasCageSmoothPage(self))
@@ skipping 96 matching lines @@
       # Why: #1 Alexa sports
       'http://sports.yahoo.com/',
       # Why: Top tech blog
       'http://techcrunch.com',
       # Why: #6 Alexa sports
       'http://mlb.com/',
       # Why: #14 Alexa California
       'http://www.sfgate.com/',
       # Why: Non-latin character set
       'http://worldjournal.com/',
-      # Why: Mobile wiki
-      'http://www.wowwiki.com/World_of_Warcraft:_Mists_of_Pandaria',
       # Why: #15 Alexa news
       'http://online.wsj.com/home-page',
       # Why: Image-heavy mobile site
       'http://www.deviantart.com/',
       # Why: Top search engine
       ('http://www.baidu.com/s?wd=barack+obama&rsv_bp=0&rsv_spt=3&rsv_sug3=9&'
        'rsv_sug=0&rsv_sug4=3824&rsv_sug1=3&inputT=4920'),
       # Why: Top search engine
       'http://www.bing.com/search?q=sloths',
       # Why: Good example of poor initial scrolling
       'http://ftw.usatoday.com/2014/05/spelling-bee-rules-shenanigans'
     ]
 
     for url in urls_list:
       self.AddUserStory(KeyMobileSitesSmoothPage(url, self))