Disable load:games:miniclip on Mac perf bots

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 system_health_story
 
 from page_sets.login_helpers import dropbox_login
 from page_sets.login_helpers import google_login
 
+from telemetry import decorators
+
 
 class _LoadingStory(system_health_story.SystemHealthStory):
   """Abstract base class for single-page System Health user stories."""
   ABSTRACT_STORY = True
 
 
 ################################################################################
 # Search and e-commerce.
 ################################################################################
 # TODO(petrcermak): Split these into 'portal' and 'shopping' stories.
@@ skipping 353 matching lines @@
   # Using "https://" shows "Your connection is not private".
   URL = 'http://playstar.mobi/games/spychase/index.php'
 
   def _DidLoadDocument(self, action_runner):
     # The background of the game canvas is set when the "Tap screen to play"
     # caption is displayed.
     action_runner.WaitForJavaScriptCondition(
         'document.querySelector("#game canvas").style.background !== ""')
 
 
+@decorators.Disabled('mac') # crbug.com/664661
 class LoadMiniclipStory(_LoadingStory):
   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.