Policy to control ARC Backup&Restore.

components/policy/resources/policy_templates.json

Index: components/policy/resources/policy_templates.json
diff --git a/components/policy/resources/policy_templates.json b/components/policy/resources/policy_templates.json
index 177040f1c64a39a8775efbcbb5b09639d9f32653..383be44f112a46d41ec5587045e234dcc9ecae8d 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -137,7 +137,7 @@
 #   persistent IDs for all fields (but not for groups!) are needed. These are
 #   specified by the 'id' keys of each policy. NEVER CHANGE EXISTING IDs,
 #   because doing so would break the deployed wire format!
-#   For your editing convenience: highest ID currently used: 336
+#   For your editing convenience: highest ID currently used: 337
 #
 # Placeholders:
 #   The following placeholder strings are automatically substituted:
@@ -8743,6 +8743,29 @@
       'tags': [],
       'desc': '''If this is set to true or is not set, users will be able to cast tabs, sites or the desktop from the browser. If set to false, this option will be disabled.'''
     },
+    {
+      'name': 'ArcBackupRestoreEnabled',
+      'type': 'main',
+      'schema': { 'type': 'boolean' },
+      'supported_on': ['chrome_os:53-'],
+      'features': {
+        'dynamic_refresh': True,
+        'per_profile': False,
+      },
+      'example_value': False,
+      'id': 337,
+      'default_for_enterprise_users': False,
+      'caption': '''Enable Backup and Restore for ARC''',

[Thiemo Nagel, 2016/07/12 15:02:40]

From our docs, it seems to me that Android Backup Service is the official name
of this feature.  If this is correct, please change the name of the policy and
update the documentation.

https://support.google.com/nexus/answer/2819582?hl=en

[Sergey Poromov, 2016/07/12 16:18:11]

Done. Also changed histograms.xml

+      'tags': [],
+      'desc':
+      '''When this policy is set to True, ARC app data will be uploaded

[Thiemo Nagel, 2016/07/12 15:02:40]

s/True/true

Nit: I'd suggest to use present tense as that is better style.

[Sergey Poromov, 2016/07/12 16:18:12]

Done.

+      to Android Backup servers and restored from them upon app installations.

[Thiemo Nagel, 2016/07/12 15:02:40]

Maybe replacing "installations" by "re-installation" makes things clearer?

[Sergey Poromov, 2016/07/12 16:18:11]

Done.

+
+      If this setting is configured then users are not able change it themselves.
+
+      If this setting is not configured then users are able to turn Backup
+      and Restore on and off in Android Settings app.''',
+    },
   ],
   'messages': {
     # Messages that are not associated to any policies.