Add optional mandatory policy setting for template generation

grit/format/policy_templates/writer_configuration.py

 #!/usr/bin/env 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.
 
 
 def GetConfigurationForBuild(defines):
   '''Returns a configuration dictionary for the given build that contains
   build-specific settings and information.
 
@@ skipping 15 matching lines @@
       'app_name': 'Chromium',
       'frame_name': 'Chromium Frame',
       'os_name': 'Chromium OS',
       'win_reg_mandatory_key_name': 'Software\\Policies\\Chromium',
       'win_reg_recommended_key_name':
           'Software\\Policies\\Chromium\\Recommended',
       'win_mandatory_category_path': ['chromium'],
       'win_recommended_category_path': ['chromium_recommended'],
       'admx_namespace': 'Chromium.Policies.Chromium',
       'admx_prefix': 'chromium',
+      'linux_policy_path': '/etc/chromium/policies/',
     }
   elif '_google_chrome' in defines:
     config = {
       'build': 'chrome',
       'app_name': 'Google Chrome',
       'frame_name': 'Google Chrome Frame',
       'os_name': 'Google Chrome OS',
       'win_reg_mandatory_key_name': 'Software\\Policies\\Google\\Chrome',
       'win_reg_recommended_key_name':
           'Software\\Policies\\Google\\Chrome\\Recommended',
       'win_mandatory_category_path': ['google', 'googlechrome'],
       'win_recommended_category_path': ['google', 'googlechrome_recommended'],
       'admx_namespace': 'Google.Policies.Chrome',
       'admx_prefix': 'chrome',
+      'linux_policy_path': '/etc/opt/chrome/policies/',
     }
   else:
     raise Exception('Unknown build')
   config['win_group_policy_class'] = 'Both'
   config['win_supported_os'] = 'SUPPORTED_WINXPSP2'
   if 'mac_bundle_id' in defines:
     config['mac_bundle_id'] = defines['mac_bundle_id']
   return config