Modify list_system_health_stories to generate_system_health_csv

tools/perf/page_sets/system_health/searching_stories.py

 # 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 telemetry import decorators
 
 from devil.android.sdk import keyevent # pylint: disable=import-error
 
 
 # TODO(ssid): Rename the search stories to browse stories crbug.com/708300.
 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 = 'search:portal:google'
   URL = 'https://www.google.co.uk/'
   TAGS = [story_tags.EMERGING_MARKET]
 
   _SEARCH_BOX_SELECTOR = 'input[aria-label="Search"]'
   _RESULT_SELECTOR = '.r > a[href*="wikipedia"]'
 
   def _DidLoadDocument(self, action_runner):
     # Click on the search box.
     action_runner.Wait(1)
@@ skipping 41 matching lines @@
     platform.android_action_runner.InputKeyEvent(keyevent.KEYCODE_ENTER)
 
     action_runner.WaitForNavigate()
     action_runner.ScrollPage(use_touch=True, distance=500)
 
 
 @decorators.Disabled('android-webview')  # Webview does not have new tab page.
 class MobileNewTabPageStory(system_health_story.SystemHealthStory):
   """Story that loads new tab page and performs searches.
 
-  For each of the search queries in |_SEARCH_TEXTS| below, this story does:
+  Given a list of typical search queries, this story does for each of them:
    - enter the search query on the new tab page search box
    - read results
    - navigates back to new tab page
   """
-
   NAME = 'browse:chrome:newtab'
   URL = 'chrome://newtab'
   _SEARCH_TEXTS = ['does google know everything',
                    'most famous paintings',
                    'current weather',
                    'best movies 2016',
                    'how to tie a tie']
 
   SUPPORTED_PLATFORMS = platforms.MOBILE_ONLY
   TAGS = [story_tags.EMERGING_MARKET]
 
   def _DidLoadDocument(self, action_runner):
     app_ui = action_runner.tab.browser.GetAppUi()
     platform = action_runner.tab.browser.platform
     for keyword in self._SEARCH_TEXTS:
       app_ui.WaitForUiNode(resource_id='search_box').Tap()
       platform.android_action_runner.InputText(keyword)
       platform.android_action_runner.InputKeyEvent(keyevent.KEYCODE_ENTER)
       action_runner.WaitForNavigate()
       action_runner.Wait(1.5) # Read results
       action_runner.ScrollPage(use_touch=True)
       action_runner.NavigateBack()
       action_runner.WaitForNavigate()
 
     app_ui.WaitForUiNode(resource_id='menu_button').Tap()
     app_ui.WaitForUiNode(resource_id='menu_item_text')