Add ArcEnabled policy implementation

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index faff91ed83e6f5ef15fbb7b1ae9caa978dc596b6..ef3c4c74e521f96694f97c15e5a84ceab8854702 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -2319,12 +2319,15 @@ cr.define('options', function() {
     };
 
     /**
-     * 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.

+      }
     };
   }