ChromeOS: Show the new POD RE-AUTH ICON when users needs to re-auth

ui/login/account_picker/user_pod_template.html

Index: ui/login/account_picker/user_pod_template.html
diff --git a/ui/login/account_picker/user_pod_template.html b/ui/login/account_picker/user_pod_template.html
index 07678638f9bb554c15198c5be5133d9644be1def..b1943aa688cd3ab4f7c0251ea22ef837e8b4c181 100644
--- a/ui/login/account_picker/user_pod_template.html
+++ b/ui/login/account_picker/user_pod_template.html
@@ -1,3 +1,5 @@
+<link rel="import" href="chrome://resources/polymer/core-icons/core-icons.html">
+
 <div id="user-pod-template" class="pod" hidden>
   <div class="user-image-pane">
     <div class="user-image-container">
@@ -12,7 +14,10 @@
   </div>
   <div class="main-pane">
     <div class="name-container">
-      <div class="name"></div>
+      <div class="name-box">
+        <core-icon icon="warning" class="reauth-warning"></core-icon>

[dzhioev (left Google), 2015/06/23 00:02:09]

Note: if https://codereview.chromium.org/1179323005/ landed before this CL,
<core-icon> would need to be renamed to <iron-icon>.

+        <span class="name"></span>
+      </div>
       <div class="learn-more-container">
         <div class="learn-more"></div>
       </div>