Add MIPS coverage to V8 build bots.

masters/master.client.v8/slaves.cfg

 # -*- python -*-
 # ex: set syntax=python:
 
 # Copyright (c) 2011 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.
 
 # Temporarily a copy from branches_cfg.py until loading is done with correct
 # path from scripts/slave/slaves_utils.py.
 stable_branch = '3.5'
@@ skipping 165 matching lines @@
   {
     'master': 'V8',
     'builder': 'V8 Linux - nosse4',
     'hostname': 'vm97-m3',
     'os': 'linux',
     'version': 'lucid',
     'bits': '64',
   },
   {
     'master': 'V8',
-    'builder': 'V8 Linux - arm - sim',
+    'builder': ['V8 Linux - arm - sim', 'V8 Linux - mips - sim'],
     'hostname': 'vm176-m3',
     'os': 'linux',
     'version': 'lucid',
     'bits': '32',
   },
   {
     'master': 'V8',
     'builder': 'V8 Linux - arm - sim - mozilla',
     'hostname': 'vm108-m3',
     'os': 'linux',
@@ skipping 270 matching lines @@
                 'V8 Linux64 - trunk',
                 branch_names['stable']['x64'],
                 branch_names['dev']['x64'],
                 branch_names['beta']['x64']],
     'hostname': 'vm109-m3',
     'os': 'linux',
     'version': 'lucid',
     'bits': '64',
   },
 ]