[PerfBotSheriff] Disable a v8 top 25 page

tools/perf/page_sets/v8_top_25.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 telemetry.page import page as page_module
 from telemetry import story
 
 
 class V8Top25(page_module.Page):
 
   def __init__(self, url, page_set, name=''):
@@ skipping 23 matching lines @@
     'http://www.twitter.com/taylorswift13',
     'http://www.reddit.com',
     'http://www.ebay.fr/sch/i.html?_nkw=v8',
     'http://edition.cnn.com',
     'http://world.taobao.com',
     'http://www.instagram.com/archdigest',
     'https://www.linkedin.com/m/',
     'http://www.msn.com/ar-ae',
     'http://www.bing.com/search?q=v8+engine',
     'http://www.pinterest.com/categories/popular',
-    'http://www.sina.com.cn',
+    # 'http://www.sina.com.cn', http://crbug.com/699579
     'http://weibo.com',
     'http://yandex.ru/search/?text=v8',
     'http://www.wikiwand.com/en/hill',
     'http://meta.discourse.org',
     'http://reddit.musicplayer.io',
     'http://inbox.google.com',
     'http://maps.google.co.jp/maps/search/restaurant+tokyo',
     'https://adwords.google.com',
     'http://pollouer.muc/Speedometer/CustomRunner.html?angular',
     'http://pollouer.muc/Speedometer/CustomRunner.html?jquery',
     'http://pollouer.muc/Speedometer/CustomRunner.html?backbone',
     'http://pollouer.muc/Speedometer/CustomRunner.html?ember',
     'http://pollouer.muc/Speedometer/CustomRunner.html?vanilla',
     'https://cdn.ampproject.org/c/www.bbc.co.uk/news/amp/37344292#log=3',
 ]
 
 
 class V8Top25StorySet(story.StorySet):
   """~25 of top pages, used for v8 testing. They represent popular websites as
   well as other pages the V8 team wants to track due to their unique
   characteristics."""
 
   def __init__(self):
     super(V8Top25StorySet, self).__init__(
         archive_data_file='data/v8_top_25.json',
         cloud_storage_bucket=story.INTERNAL_BUCKET)
 
     for url in urls_list:
       self.AddStory(V8Top25(url, self))