Add ArcEnabled policy implementation

chrome/browser/resources/options/browser_options.js

 // 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.
 
 cr.exportPath('options');
 
 /**
  * @typedef {{actionLinkText: (string|undefined),
  *            childUser: (boolean|undefined),
  *            hasError: (boolean|undefined),
@@ skipping 2301 matching lines @@
           break;
         case ConsumerManagementOverlay.Status.STATUS_UNENROLLING:
           strId = 'consumerManagementUnenrollingButton';
           button.disabled = true;
           break;
       }
       button.textContent = loadTimeData.getString(strId);
     };
 
     /**
-     * Hides Android Apps settings when they are not available (ChromeOS only).
+     * Hides Android Apps settings when they are not available.
+     * Disables Android Apps checkbox for managed profiles. (ChromeOS only)

[bartfab (slow), 2016/02/16 15:23:00]

Nit 1: s/profiles/users/
Nit 2: s/ChromeOS/Chrome OS/ while you are here.
Nit 3: Move the full stop back after the brackets, not before.

[Polina Bondarenko, 2016/02/25 15:28:30]

Removed my changes, it works without explicit disable this section after reboot.

[bartfab (slow), 2016/03/02 14:45:40]

What do you mean by "after reboot" - do you need to reboot your device for the
policy to be reflected by the check box? That should not be.

      */
-    BrowserOptions.hideAndroidAppsSection = function() {
-      var section = $('andorid-apps-section');
-      if (section)
-        section.hidden = true;
+    BrowserOptions.setAndroidAppsSectionAttributes = function(hidden, managed) {
+      var section = $('android-apps-section');
+      if (section) {
+        section.hidden = hidden;
+        section.disabled = managed;

[bartfab (slow), 2016/02/16 15:23:00]

The check box should disable itself when the pref becomes managed by policy. Why
do you need to do it manually here? If the automatic mechanism is not working,
please fix it rather than hacking around it.

[Polina Bondarenko, 2016/02/25 15:28:30]

Done.

+      }
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 });