[MD Bookmarks] Add lines between items and no search results message.

chrome/browser/resources/md_bookmarks/app.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://bookmarks/list.html">
 <link rel="import" href="chrome://bookmarks/shared_vars.html">
 <link rel="import" href="chrome://bookmarks/sidebar.html">
 <link rel="import" href="chrome://bookmarks/store.html">
 <link rel="import" href="chrome://bookmarks/toolbar.html">
 
 <dom-module id="bookmarks-app">
   <template>
     <style>
@@ skipping 16 matching lines @@
       }
 
       bookmarks-list {
         flex: 1;
       }
     </style>
     <bookmarks-toolbar search-term="[[searchTerm]]"></bookmarks-toolbar>
     <div id="main-container">
       <bookmarks-sidebar root-folders="[[rootNode.children]]">
       </bookmarks-sidebar>
-      <bookmarks-list displayed-list="[[displayedList]]"></bookmarks-list>
+      <bookmarks-list displayed-list="[[displayedList]]"
+          search-term="[[searchTerm]]"></bookmarks-list>
     </div>
     <bookmarks-store selected-id="{{selectedId}}"
         root-node="{{rootNode}}"
         search-term="{{searchTerm}}"
         displayed-list="{{displayedList}}">
     </bookmarks-store>
   </template>
   <script src="chrome://bookmarks/app.js"></script>
 </dom-module>