Revert of [tools/perf] Disable load:tools:drive system health story

tools/perf/page_sets/system_health/loading_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 page_sets.login_helpers import dropbox_login
 from page_sets.login_helpers import google_login
@@ skipping 338 matching lines @@
   def _Login(self, action_runner):
     dropbox_login.LoginAccount(action_runner, 'dropbox', self.credentials_path)
 
 
 class LoadWeatherStory(_LoadingStory):
   NAME = 'load:tools:weather'
   URL = 'https://weather.com/en-GB/weather/today/l/USCA0286:1:US'
   TAGS = [story_tags.JAVASCRIPT_HEAVY]
 
 
-@decorators.Disabled('all')  # crbug.com/715936
 class LoadDriveStory(_LoadingStory):
   NAME = 'load:tools:drive'
   URL = 'https://drive.google.com/drive/my-drive'
   TAGS = [story_tags.JAVASCRIPT_HEAVY]
 
   def _Login(self, action_runner):
     google_login.LoginGoogleAccount(action_runner, 'googletest',
                                     self.credentials_path)
 
 
@@ skipping 36 matching lines @@
   NAME = 'load:games:miniclip'
   # Using "https://" causes "404 Not Found" during WPR recording.
   URL = 'http://www.miniclip.com/games/en/'
   SUPPORTED_PLATFORMS = platforms.DESKTOP_ONLY  # Requires Flash.
 
 
 class LoadAlphabettyStory(_LoadingStory):
   NAME = 'load:games:alphabetty'
   URL = 'https://king.com/play/alphabetty'
   SUPPORTED_PLATFORMS = platforms.DESKTOP_ONLY  # Requires Flash.