key_mobile_sites_smooth: Reload pages before scrolling for LinkedIn and Wowwiki

tools/perf/page_sets/key_mobile_sites_smooth.py

Index: tools/perf/page_sets/key_mobile_sites_smooth.py
diff --git a/tools/perf/page_sets/key_mobile_sites_smooth.py b/tools/perf/page_sets/key_mobile_sites_smooth.py
index 918e46ddcddf911e16e733b5e51637addf9aa090..92f5f28421040c62ee370feb734c8b6fddcf0982 100644
--- a/tools/perf/page_sets/key_mobile_sites_smooth.py
+++ b/tools/perf/page_sets/key_mobile_sites_smooth.py
@@ -40,6 +40,39 @@ class KeyMobileSitesSmoothPage(page_module.Page):
     _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):
@@ -129,7 +162,6 @@ class KeyMobileSitesSmoothPageSet(page_set_module.PageSet):
       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,
     ]
@@ -137,6 +169,10 @@ class KeyMobileSitesSmoothPageSet(page_set_module.PageSet):
       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.
@@ -253,8 +289,6 @@ class KeyMobileSitesSmoothPageSet(page_set_module.PageSet):
       '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