[MIPS] Enhance MIPS testing on its buildbot

buildbot/buildbot_lib.py

 #!/usr/bin/python
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import optparse
 import os.path
 import shutil
 import subprocess
 import sys
 import time
 import traceback
 
 
 ARCH_MAP = {
     '32': {
         'gyp_arch': 'ia32',
         'scons_platform': 'x86-32',
         },
     '64': {
         'gyp_arch': 'x64',
         'scons_platform': 'x86-64',
         },
     'arm': {
         'gyp_arch': 'arm',
         'scons_platform': 'arm',
         },
+    'mips32': {
+        'gyp_arch': 'mips32',
+        'scons_platform': 'mips32',
+        },
     }
 
 
 def RunningOnBuildbot():
   return os.environ.get('BUILDBOT_SLAVE_TYPE') is not None
 
 
 def GetHostPlatform():
   sys_platform = sys.platform.lower()
   if sys_platform.startswith('linux'):
@@ skipping 603 matching lines @@
   #   Otherwise these go back to the preamble.
   with Step('summary', status):
     if status.ever_failed:
       print 'There were failed stages.'
     else:
       print 'Success.'
     # Display a summary of the build.
     status.DisplayBuildStatus()
 
   sys.exit(status.ReturnValue())