Show GAIA/cookie accounts on the signin-internals page.

chrome/browser/resources/signin_internals/signin_index.html

Index: chrome/browser/resources/signin_internals/signin_index.html
diff --git a/chrome/browser/resources/signin_internals/signin_index.html b/chrome/browser/resources/signin_internals/signin_index.html
index bea3a9ca3ec06246edef91ff3bb1e54c5cb2d2f0..3cc11f1999b947421bf5ec57624f10d977373fb2 100644
--- a/chrome/browser/resources/signin_internals/signin_index.html
+++ b/chrome/browser/resources/signin_internals/signin_index.html
@@ -50,6 +50,21 @@
       </table>
     </div>
   </div>
+  <div id='cookie-info'>
+    <h2>Accounts in Cookie Jar</h2>
+    <div class="cookieSection">
+      <table class="signin-details">
+        <tr class="header">
+          <td>Email Address</td>
+          <td>Validity</td>
+        </tr>
+        <tr jsselect="cookie_info">
+          <td jscontent="email"></td>
+          <td jscontent="valid"></td>
+        </tr>
+      </table>
+    </div>
+  </div>
   <script src="chrome://resources/js/i18n_template.js"></script>
   <script src="chrome://resources/js/i18n_process.js"></script>
   <script src="chrome://resources/js/jstemplate_compiled.js"></script>