Add Multi-tab System Health Story

tools/perf/page_sets/system_health/multi_tab_stories.py

Index: tools/perf/page_sets/system_health/multi_tab_stories.py
diff --git a/tools/perf/page_sets/system_health/multi_tab_stories.py b/tools/perf/page_sets/system_health/multi_tab_stories.py
new file mode 100644
index 0000000000000000000000000000000000000000..f472a6beab6b6c4eab4e6599f10fe220da1012b2
--- /dev/null
+++ b/tools/perf/page_sets/system_health/multi_tab_stories.py
@@ -0,0 +1,81 @@
+# Copyright 2017 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.
+
+import py_utils
+import logging
+
+from page_sets.system_health import system_health_story
+from page_sets.system_health import story_tags
+from page_sets.system_health import platforms
+
+
+class _MultiTabStory(system_health_story.SystemHealthStory):
+  ABSTRACT_STORY = True
+
+  def RunNavigateSteps(self, action_runner):
+    tabs = action_runner.tab.browser.tabs
+
+    # No need to create the first tab as there is already one
+    # when the browser is ready,
+    if self.URL_LIST:
+      action_runner.Navigate(self.URL_LIST[0])
+    for url in self.URL_LIST[1:]:
+      new_tab = tabs.New()
+      new_tab.action_runner.Navigate(url)
+
+    for i, url in enumerate(self.URL_LIST):
+      try:
+        tabs[i].action_runner.WaitForNetworkQuiescence()
+      except py_utils.TimeoutException:
+        logging.warning('WaitForNetworkQuiescence() timeout, url[%d]: %s'
+                        % (i, url))
+
+  def RunPageInteractions(self, action_runner):
+    for tab in action_runner.tab.browser.tabs:
+      tab.Activate()
+      tab.WaitForFrameToBeDisplayed()
+
+
+class MultiTabTypical24Story(_MultiTabStory):
+  NAME = 'multitab:misc:typical24'
+  TAGS = [story_tags.TABS_SWITCHING]
+  URL_LIST = [
+    # Why: Alexa games #48
+    'http://www.nick.com/games',
+    # Why: Alexa sports #45
+    'http://www.rei.com/',
+    # Why: Alexa sports #50
+    'http://www.fifa.com/',
+    # Why: Alexa shopping #41
+    'http://www.gamestop.com/ps3',
+    # Why: Alexa news #55
+    ('http://www.economist.com/news/science-and-technology/21573529-small-'
+     'models-cosmic-phenomena-are-shedding-light-real-thing-how-build'),
+    # Why: Alexa news #67
+    'http://www.theonion.com',
+    'http://arstechnica.com/',
+    # Why: Alexa home #10
+    'http://allrecipes.com/Recipe/Pull-Apart-Hot-Cross-Buns/Detail.aspx',
+    'http://www.html5rocks.com/en/',
+    'http://www.mlb.com/',
+    'http://gawker.com/5939683/based-on-a-true-story-is-a-rotten-lie-i-hope-you-never-believe',
+    'http://www.imdb.com/title/tt0910970/',
+    'http://www.flickr.com/search/?q=monkeys&f=hp',
+    'http://money.cnn.com/',
+    'http://www.nationalgeographic.com/',
+    'http://premierleague.com',

[nednguyen, 2017/03/04 03:13:06]

I notice that https://www.premierleague.com/, https://www.html5rocks.com/en/
cause a "404 Not Found" error. 

Feel free to remove ones that have 404 error or rerecord the story (I suggest
hack in some wait time when you record it to make sure WPR is able to capture
the network).

[vovoy, 2017/03/04 03:19:06]

OK, I will check and fix the recording.

+    'http://www.osubeavers.com/',
+    'http://walgreens.com',
+    'http://colorado.edu',
+    ('http://www.ticketmaster.com/JAY-Z-and-Justin-Timberlake-tickets/artist/'
+     '1837448?brand=none&tm_link=tm_homeA_rc_name2'),
+    # pylint: disable=line-too-long
+    'http://www.theverge.com/2013/3/5/4061684/inside-ted-the-smartest-bubble-in-the-world',
+    'http://www.airbnb.com/',
+    'http://www.ign.com/',
+    # Why: Alexa health #25
+    'http://www.fda.gov',
+  ]
+  URL = URL_LIST[0]
+  SUPPORTED_PLATFORMS = platforms.DESKTOP_ONLY