Roll mac toolchain to include 10.11.

build/mac_toolchain.py

 #!/usr/bin/env python
 # Copyright 2016 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.
 
 """Download necessary mac toolchain files under certain conditions.  If
 xcode-select is already set and points to an external folder
 (e.g. /Application/Xcode.app), this script only runs if the GYP_DEFINE
 |force_mac_toolchain| is set.  To override the values in
 |TOOLCHAIN_REVISION|-|TOOLCHAIN_SUB_REVISION| below, GYP_DEFINE
@@ skipping 12 matching lines @@
 import shutil
 import subprocess
 import sys
 import tarfile
 import time
 import tempfile
 import urllib2
 
 # This can be changed after running /build/package_mac_toolchain.py.
 TOOLCHAIN_REVISION = '5B1008'
-TOOLCHAIN_SUB_REVISION = 2
+TOOLCHAIN_SUB_REVISION = 3
 TOOLCHAIN_VERSION = '%s-%s' % (TOOLCHAIN_REVISION, TOOLCHAIN_SUB_REVISION)
 
 BASE_DIR = os.path.abspath(os.path.dirname(__file__))
 TOOLCHAIN_BUILD_DIR = os.path.join(BASE_DIR, 'mac_files', 'Xcode.app')
 STAMP_FILE = os.path.join(BASE_DIR, 'mac_files', 'toolchain_build_revision')
 TOOLCHAIN_URL = 'gs://chrome-mac-sdk/'
 
 
 def GetToolchainDirectory():
   if sys.platform == 'darwin' and not UseLocalMacSDK():
@@ skipping 156 matching lines @@
     WriteStampFile(toolchain_revision)
     return 0
   except Exception as e:
     print 'Failed to download toolchain %s.' % toolchain_file
     print 'Exception %s' % e
     print 'Exiting.'
     return 1
 
 if __name__ == '__main__':
   sys.exit(main())