Represent kiosk apps as user pods instead of menu items.

chrome/browser/resources/chromeos/login/user_pod_row.css

Index: chrome/browser/resources/chromeos/login/user_pod_row.css
diff --git a/chrome/browser/resources/chromeos/login/user_pod_row.css b/chrome/browser/resources/chromeos/login/user_pod_row.css
index 00cf73442db16509595ae37268eb84315be41222..41ee9cb5b62ff3919953f110ae0cc37f76ac95fd 100644
--- a/chrome/browser/resources/chromeos/login/user_pod_row.css
+++ b/chrome/browser/resources/chromeos/login/user_pod_row.css
@@ -174,7 +174,8 @@ button.custom-button:focus:hover {
   display: -webkit-box;
 }
 
-.pod .signin-button {
+.pod .signin-button,
+.pod .launch-app-button {
   box-sizing: border-box;
   display: inline-block;
   height: 26px;
@@ -184,7 +185,8 @@ button.custom-button:focus:hover {
   padding: 4px 8px;
 }
 
-.pod:not(.focused) .signin-button {
+.pod:not(.focused) .signin-button,
+.pod:not(.focused) .launch-app-button  {
   display: none;
 }
 
@@ -280,6 +282,10 @@ html[dir=rtl] .user-type-icon-area {
   background-image: url('chrome://theme/IDR_CONTROLLED_SETTING_MANDATORY');
 }
 
+.user-type-icon-area.app .user-type-icon-image {
+  background-image: url('chrome://theme/IDR_KIOSK_APP_USER_POD_ICON');
+}
+
 .user-type-icon-area.policy:hover ~ .user-type-bubble {
   opacity: 1;
   visibility: visible;