Add a Win Clang deterministic builder.

masters/master.chromium.swarm/slaves.cfg

 # -*- python -*-
 # ex: set syntax=python:
 
 # 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.
 
 # See master.experimental/slaves.cfg for documentation.
 
 heartbeat_slaves = [
@@ skipping 53 matching lines @@
     'master': 'ChromiumSwarm',
     'builder': 'Mac Swarm Tests (dbg)',
     'hostname': 'vm601-m1',
     'os': 'mac',
     'version': '10.8',
     'bits': '64',
   },
   {
     'master': 'ChromiumSwarm',
     'builder': 'Windows deterministic build',
-    'hostname': 'vm819-m1',
-    'os': 'win',
-    'version': 'win7',
-    'bits': '64',
-  },
-  {
-    'master': 'ChromiumSwarm',
-    'builder': 'Windows deterministic build',
     'hostname': 'win12-c1',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
   },
   {
     'master': 'ChromiumSwarm',
-    'builder': 'Windows deterministic build',
+    'builder': 'Windows Clang deterministic build',
     'hostname': 'win13-c1',
     'os': 'win',
     'version': 'win7',
     'bits': '64',
   },
   {
     'master': 'ChromiumSwarm',
     'builder': 'Linux deterministic build',
     'hostname': 'slave0-c1',
     'os': 'linux',
@@ skipping 46 matching lines @@
     'hostname': 'vm%d-m1' % i,
     'builder': 'mac',
     'os': 'mac',
     'version': '10.8',
     'bits': '64',
   } for i in [613, 625, 637, 639, 648]
 ]
 
 slaves = (
     heartbeat_slaves + real_slaves + win_slaves + linux_slaves + mac_vm_slaves)