Hide delete-profile checkbox when profile deletion is forbidden.

chrome/browser/resources/sync_setup_overlay.js

Index: chrome/browser/resources/sync_setup_overlay.js
diff --git a/chrome/browser/resources/sync_setup_overlay.js b/chrome/browser/resources/sync_setup_overlay.js
index bb2f316437fa8ec2adb0ab8dad33baceaceaa893..6d6dc9dd3fdd1aeab1557f7f0de4e6bd90897b37 100644
--- a/chrome/browser/resources/sync_setup_overlay.js
+++ b/chrome/browser/resources/sync_setup_overlay.js
@@ -70,6 +70,14 @@ cr.define('options', function() {
       Page.prototype.initializePage.call(this);
 
       var self = this;
+
+      // If 'profilesInfo' doesn't exist, it's forbidden to delete profile.
+      // So don't display the delete-profile checkbox.
+      if (!loadTimeData.valueExists('profilesInfo') &&
+          $('sync-setup-delete-profile')) {
+        $('sync-setup-delete-profile').hidden = true;
+      }
+
       $('basic-encryption-option').onchange =
           $('full-encryption-option').onchange = function() {
         self.onEncryptionRadioChanged_();