Default values for enterprise users are supported.

components/policy/resources/policy_templates.json

 {
 # policy_templates.json - Metafile for policy templates
 #
 # The content of this file is evaluated as a Python expression.
 #
 # This file is used as input to generate the following policy templates:
 # ADM, ADMX+ADML, MCX/plist and html documentation.
 #
 # Policy templates are user interface definitions or documents about the
 # policies that can be used to configure Chrome. Each policy is a name-value
@@ skipping 117 matching lines @@
 #     $2 -> Google Chrome OS / Chromium OS
 #     $3 -> Google Chrome Frame / Chromium Frame
 #     $6 is reserved for doc_writer
 #
 # Device Policy:
 #   An additional flag device_only (optional, defaults to False) indicates
 #   that this policy is only supported as a device-level Cloud Policy.
 #   In that case no entry in the UserPolicy Protobuf is generated and
 #   it is assumed that it will be added to the DevicePolicy Protobuf manually.
 #
+# Enterprise defaults:
+#   An optional key 'default_for_enterprise_users' contains value that's set for
+#   enterprise users as a default.
+#
   'policy_definitions': [
     {
       'name': 'Homepage',
       'type': 'group',
       'caption': '''Home page''',
       'desc': '''Configure the default home page in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> and prevents users from changing it.
 
       The user's home page settings are only completely locked down, if you either select the home page to be the new tab page, or set it to be a URL and specify a home page URL. If you don't specify the home page URL, then the user is still able to set the home page to the new tab page by specifying 'chrome://newtab'.''',
       'policies': [
         {
@@ skipping 2988 matching lines @@
           'value': 'not-allowed',
           'caption': '''Do not allow enterprise user to be part of multiprofile (primary or secondary)''',
         },
       ],
       'supported_on': ['chrome_os:31-'],
       'features': {
         'dynamic_refresh': True,
         'per_profile': True,
       },
       'example_value': 'unrestricted',
+      'default_for_enterprise_users': 'primary_only',
       'id': 244,
       'caption': '''Control the user behavior in a multiprofile session''',
       'desc': '''Control the user behavior in a multiprofile session on <ph name="PRODUCT_OS_NAME">$2<ex>Google Chrome OS</ex></ph> devices.
 
       If this policy is set to 'MultiProfileUserBehaviorUnrestricted', the user can be either primary or secondary user in a multiprofile session.
 
       If this policy is set to 'MultiProfileUserBehaviorMustBePrimary', the user can only be the primary user in a multiprofile session.
 
       If this policy is set to 'MultiProfileUserBehaviorNotAllowed', the user cannot be part of a multiprofile session.
 
@@ skipping 3615 matching lines @@
       'desc': '''Text appended in parentheses to the policy name to indicate that it has been deprecated''',
       'text': 'deprecated',
     },
     'doc_recommended': {
       'desc': '''Text appended in parentheses next to the policies top-level container to indicate that those policies are of the Recommended level''',
       'text': 'Default Settings (users can override)',
     },
   },
   'placeholders': [],
 }