kiosk: Ensures "Apps" menu visible on launch error.

chrome/browser/resources/chromeos/login/apps_menu.js

Index: chrome/browser/resources/chromeos/login/apps_menu.js
diff --git a/chrome/browser/resources/chromeos/login/apps_menu.js b/chrome/browser/resources/chromeos/login/apps_menu.js
index 7e7a33aab8106f09ef15f8294c13a70fff8918ed..37fa769ce121c91131e07d05012f9cfd42f79e08 100644
--- a/chrome/browser/resources/chromeos/login/apps_menu.js
+++ b/chrome/browser/resources/chromeos/login/apps_menu.js
@@ -61,7 +61,8 @@ cr.define('login', function() {
         this.needsRebuild_ = false;
       }
 
-      MenuButton.prototype.showMenu.apply(this, arguments);
+      if (this.data.length > 0)
+        MenuButton.prototype.showMenu.apply(this, arguments);
     },
 
     /**
@@ -147,7 +148,8 @@ cr.define('login', function() {
    */
   AppsMenuButton.setApps = function(apps) {
     $('show-apps-button').data = apps;
-    $('login-header-bar').hasApps = apps.length > 0;
+    $('login-header-bar').hasApps =
+        apps.length > 0 || loadTimeData.getBoolean('kioskAppHasLaunchError');
     chrome.send('kioskAppsLoaded');
   };