Do not reload account picker when device-local account policy changes

ui/login/account_picker/user_pod_row.js

Index: ui/login/account_picker/user_pod_row.js
diff --git a/ui/login/account_picker/user_pod_row.js b/ui/login/account_picker/user_pod_row.js
index f1a435b85cd49773ea3287678d5aa37057883119..494c58f389f5863c16945e62d8185aee218a1967 100644
--- a/ui/login/account_picker/user_pod_row.js
+++ b/ui/login/account_picker/user_pod_row.js
@@ -1162,6 +1162,15 @@ cr.define('login', function() {
     },
 
     /**
+     * Updates the display name shown on the pod.
+     * @param {string} displayName The new display name
+     */
+    setDisplayName: function(displayName) {
+      this.user_.displayName = displayName;
+      this.update();
+    },
+
+    /**
      * Handle mouse and keyboard events for the learn more button. Triggering
      * the button causes information about public sessions to be shown.
      * @param {Event} event Mouse or keyboard event.
@@ -1842,6 +1851,17 @@ cr.define('login', function() {
     },
 
     /**
+     * Updates the display name shown on a public session pod.
+     * @param {string} userID The user ID of the public session
+     * @param {string} displayName The new display name
+     */
+    setPublicSessionDisplayName: function(userID, displayName) {
+      var pod = this.getPodWithUsername_(userID);
+      if (pod != null)
+        pod.setDisplayName(displayName);
+    },
+
+    /**
      * Updates the list of available keyboard layouts for a public session pod.
      * @param {string} userID The user ID of the public session
      * @param {!Object} list List of available keyboard layouts