Add O/S versions to all bot names, change "Webkit" to "WebKit" in all bot names.

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
 
 defaults = {}
 
@@ skipping 13 matching lines @@
 
 #
 # Main release scheduler for webkit
 #
 S('s2_contentshell_webkit_rel', branch='trunk', treeStableTimer=60)
 
 #
 # Content Shell Layouttests
 #
 
-B('WebKit (Content Shell) Mac',
+B('WebKit (Content Shell) Mac10.6',
   'f_contentshell_mac_rel',
   scheduler='s2_contentshell_webkit_rel')
 
 F('f_contentshell_mac_rel', mac().ChromiumWebkitLatestFactory(
     target='Release',
     tests=[
       'webkit',
     ],
     options=[
       '--build-tool=ninja',
@@ skipping 10 matching lines @@
       'gclient_env': {
           'GYP_GENERATORS':'ninja',
           'GYP_DEFINES':'fastbuild=1',
       },
       'test_results_server': 'test-results.appspot.com',
     }))
 
 
 def Update(config, active_master, c):
   return helper.Update(c)