[System Health] Tidy up stories for Chrome's special pages

tools/perf/page_sets/system_health/browsing_stories.py

 # encoding: utf-8
 # Copyright 2016 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 page_sets.system_health import platforms
 from page_sets.system_health import story_tags
 from page_sets.system_health import system_health_story
 
 from page_sets.login_helpers import pinterest_login
@@ skipping 229 matching lines @@
     if has_button:
       action_runner.ClickElement(selector=self._CLOSE_BUTTON_SELECTOR)
     super(WashingtonPostMobileStory, self)._DidLoadDocument(action_runner)
 
 
 ##############################################################################
 # Search browsing stories.
 ##############################################################################
 
 
-@decorators.Disabled('win')  # crbug.com/673775
-class GoogleDesktopStory(_ArticleBrowsingStory):

[perezju, 2017/05/22 15:50:25]

This story now removed. Replaced with the old "search:portal:google" which works
on all platforms and is not disabled on any.

[nednguyen, 2017/05/22 19:52:40]

Why removing this instead of removing the old "search:portal:google" ? This is
added after the old "search:portal:google"  & is more complex (since it include
the back nav). 

-  """
-  A typical google search story:
-    _ Start at https://www.google.com/search?q=flower
-    _ Click on the wikipedia link & navigate to
-      https://en.wikipedia.org/wiki/Flower
-    _ Scroll down the wikipedia page about flower.
-    _ Back to the search main page.
-    _ Refine the search query to 'flower delivery'.
-    _ Scroll down the page.
-    _ Click the next page result of 'flower delivery'.
-    _ Scroll the search page.
+class SearchGoogleStory(system_health_story.SystemHealthStory):
+  """ A typical Google search user story.
 
+  Issue the search query "what is science" in the search box and press Enter.
+  Wait for the search result page to be loaded, then scroll to the Wikipedia
+  result.
+
+  Navigate to wikipedia page by clicking on the result and wait for it to be
+  fully loaded.
   """
   NAME = 'browse:search:google'
-  URL = 'https://www.google.com/search?q=flower'
+  URL = 'https://www.google.co.uk/'
+  TAGS = [story_tags.EMERGING_MARKET]
+
   _SEARCH_BOX_SELECTOR = 'input[aria-label="Search"]'
-  _SEARCH_PAGE_2_SELECTOR = 'a[aria-label=\'Page 2\']'
-  SUPPORTED_PLATFORMS = platforms.DESKTOP_ONLY
+  _RESULT_SELECTOR = '.r > a[href*="wikipedia"]'
 
   def _DidLoadDocument(self, action_runner):
-    # Click on flower Wikipedia link.
-    action_runner.Wait(2)
-    action_runner.ClickElement(text='Flower - Wikipedia')
-    action_runner.WaitForNavigate()
-
-    # Scroll the flower Wikipedia page, then navigate back.
-    action_runner.Wait(2)
-    action_runner.ScrollPage()
-    action_runner.Wait(2)
-    action_runner.NavigateBack()
-
     # Click on the search box.
+    action_runner.Wait(1)
     action_runner.WaitForElement(selector=self._SEARCH_BOX_SELECTOR)
-    action_runner.ClickElement(selector=self._SEARCH_BOX_SELECTOR)
-    action_runner.Wait(2)
+    action_runner.TapElement(selector=self._SEARCH_BOX_SELECTOR)
 
     # Submit search query.
-    action_runner.EnterText(' delivery')
+    action_runner.Wait(1)
+    action_runner.EnterText('what is science')
     action_runner.Wait(0.5)
     action_runner.PressKey('Return')
 
-    # Scroll down & click next search result page.
-    action_runner.Wait(2)
-    action_runner.ScrollPageToElement(selector=self._SEARCH_PAGE_2_SELECTOR)
-    action_runner.Wait(2)
-    action_runner.ClickElement(selector=self._SEARCH_PAGE_2_SELECTOR)
-    action_runner.Wait(2)
-    action_runner.ScrollPage()
+    # Scroll to the Wikipedia result.
+    action_runner.WaitForElement(selector=self._RESULT_SELECTOR)
+    action_runner.Wait(1)
+    action_runner.ScrollPageToElement(selector=self._RESULT_SELECTOR)
+
+    # Click on the Wikipedia result.
+    action_runner.Wait(1)
+    action_runner.TapElement(selector=self._RESULT_SELECTOR)
+    action_runner.tab.WaitForDocumentReadyStateToBeComplete()
 
 
 class GoogleIndiaDesktopStory(_ArticleBrowsingStory):
   """
   A typical google search story in India:
     1. Start at https://www.google.co.in/search?q=%E0%A4%AB%E0%A5%82%E0%A4%B2`
     2. Scroll down the page.
     3. Refine the query & click search box, which navigates to
     https://www.google.co.in/search?q=%E0%A4%AB%E0%A5%82%E0%A4%B2&rct=j#q=%E0%A4%AB%E0%A5%82%E0%A4%B2+%E0%A4%B5%E0%A4%BF%E0%A4%A4%E0%A4%B0%E0%A4%A3
     4. Scroll down the page.
@@ skipping 469 matching lines @@
     # Reduce the speed (the current wpr is recorded with speed set to 50)  when
     # recording the wpr. If we scroll too fast, the data will not be recorded
     # well. After recording reset it back to the original value to have a more
     # realistic scroll.
     action_runner.RepeatableBrowserDrivenScroll(
         x_scroll_distance_ratio = 0.0, y_scroll_distance_ratio = 1,
         repeat_count=3, speed=400, timeout=120)
     action_runner.RepeatableBrowserDrivenScroll(
         x_scroll_distance_ratio = 1, y_scroll_distance_ratio = 0,
         repeat_count=3, speed=500, timeout=120)