Add Clang ToT builder for iOS

masters/master.chromium.fyi/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.
 
 
@@ skipping 687 matching lines @@
     'hostname': 'slave5-c1',
     'os': 'linux',
     'version': 'precise',
     'bits': '64',
   },
   {
     'master': 'ChromiumFYI',
     'builder': [
       'ClangToTMac',
       'ClangToTMac tester',
+      'ClangToTiOS',
     ],
     'hostname': 'build98-m1',
     'os': 'mac',
     'version': '10.9',
     'bits': '64',
   },
   {
     'master': 'ChromiumFYI',
     'builder': [
       'ClangToTMac (dbg)',
@@ skipping 144 matching lines @@
   },
   {
     'master': 'ChromiumFYI',
     'builder': 'CFI Linux',
     'hostname': 'slave20-c1',
     'os': 'linux',
     'version': 'precise',
     'bits': '64',
   },
 ]