Rework how bots get the version of Blink.

masters/master.chromium.webkit/master_mac_contentshell_latest_cfg.py

 # Copyright (c) 2012 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 master import master_config
 from master.factory import chromium_factory
 
 import config
 
@@ skipping 21 matching lines @@
 S('s2_contentshell_webkit_rel', branch='trunk', treeStableTimer=60)
 
 #
 # Content Shell Layouttests
 #
 
 B('WebKit (Content Shell) Mac10.6',
   'f_contentshell_mac_rel',
   scheduler='s2_contentshell_webkit_rel')
 
-F('f_contentshell_mac_rel', mac().ChromiumWebkitLatestFactory(
+F('f_contentshell_mac_rel', mac().ChromiumFactory(
     target='Release',
     tests=[
       'webkit',
     ],
     options=[
       '--build-tool=ninja',
       '--compiler=goma-clang',
       'content_shell_builder',
     ],
     factory_properties={
       'additional_drt_flag': '--dump-render-tree',
       'additional_expectations': [
           [ 'third_party',
             'WebKit',
             'LayoutTests',
             'platform',
             'chromium',
             'ContentShellTestExpectations' ],
       ],
       'archive_webkit_results': ActiveMaster.is_production_host,
       'driver_name': 'Content Shell',
       'gclient_env': {
           'GYP_GENERATORS':'ninja',
           'GYP_DEFINES':'fastbuild=1',
       },
       'test_results_server': 'test-results.appspot.com',
+      'blink_config': 'blink',
     }))
 
 
 def Update(_config, active_master, c):
   return helper.Update(c)