[chromedriver] Stop supporting chrome 26. Don't run tests against it.

chrome/test/chromedriver/archive.py

 # Copyright (c) 2013 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.
 
 """Downloads items from the Chromium continuous archive."""
 
 import os
 import platform
 import sys
 import urllib
 
 _THIS_DIR = os.path.abspath(os.path.dirname(__file__))
 sys.path.insert(0, os.path.join(_THIS_DIR, os.pardir, 'pylib'))
 
 from common import util
 
-CHROME_26_REVISION = '181664'
 CHROME_27_REVISION = '190466'
 CHROME_28_REVISION = '198276'
 
 _SITE = 'http://commondatastorage.googleapis.com'
 
 
 class Site(object):
   CONTINUOUS = _SITE + '/chromium-browser-continuous'
   SNAPSHOT = _SITE + '/chromium-browser-snapshots'
 
@@ skipping 47 matching lines @@
   """Returns the name for this platform on the archive site."""
   if util.IsWindows():
     return 'Win'
   elif util.IsMac():
     return 'Mac'
   elif util.IsLinux():
     if platform.architecture()[0] == '64bit':
       return 'Linux_x64'
     else:
       return 'Linux'