[MD History] Copy stats from the old history page.

chrome/browser/resources/md_history/synced_device_manager.html

Index: chrome/browser/resources/md_history/synced_device_manager.html
diff --git a/chrome/browser/resources/md_history/synced_device_manager.html b/chrome/browser/resources/md_history/synced_device_manager.html
index c2f195b471948b1b4583cded30e6ef988f1a1f38..ca049784d20f3ebc4a4e37fc5afb5e5cf77d96e5 100644
--- a/chrome/browser/resources/md_history/synced_device_manager.html
+++ b/chrome/browser/resources/md_history/synced_device_manager.html
@@ -89,10 +89,11 @@
 
     <template is="history-lazy-render" id="menu">
       <cr-shared-menu>
-        <paper-item class="menu-item" on-tap="onOpenAllTap_">
+        <paper-item class="menu-item" id="open-all" on-tap="onOpenAllTap_">
           $i18n{openAll}
         </paper-item>
-        <paper-item class="menu-item" on-tap="onDeleteSessionTap_">
+        <paper-item class="menu-item" id="delete-session"
+            on-tap="onDeleteSessionTap_">
           $i18n{deleteSession}
         </paper-item>
       </cr-shared-menu>