MD Bookmarks: Proof-of-concept reimplementation of data storage/binding layer

chrome/browser/resources/md_bookmarks/folder_node.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/color.html">
+<link rel="import" href="chrome://bookmarks/actions.html">
 <link rel="import" href="chrome://bookmarks/icons.html">
 <link rel="import" href="chrome://bookmarks/shared_style.html">
+<link rel="import" href="chrome://bookmarks/store_client.html">
 
 <dom-module id="bookmarks-folder-node">
   <template>
     <style include="shared-style">
       :host {
         display: block;
       }
 
       .v-centered {
         align-items: center;
@@ skipping 44 matching lines @@
         width: 36px;
       }
     </style>
 
     <div id="container" class="v-centered">
       <div id="folder-label" class="v-centered" on-tap="selectFolder_">
         <iron-icon icon="[[getFolderIcon_(isSelectedFolder)]]"></iron-icon>
         <div class="menu-label">[[item.title]]</div>
       </div>
       <template is="dom-if" if="[[hasChildFolder_(item.children)]]">
-        <paper-icon-button icon="[[getArrowIcon_(item.isOpen)]]"
+        <paper-icon-button icon="[[getArrowIcon_(isClosed)]]"
             on-tap="toggleFolder_"></paper-icon-button>
       </template>
     </div>
-    <div id="descendants" hidden$="[[!item.isOpen]]">
+    <div id="descendants" hidden$="[[isClosed]]">
       <template is="dom-repeat" items="[[item.children]]"
-          filter="isFolder_" observe="url" as="child">
-        <bookmarks-folder-node item="[[child]]"
-            is-selected-folder="[[child.isSelectedFolder]]">
+          filter="isFolder_" as="child">
+        <bookmarks-folder-node item-id="[[child]]">
         </bookmarks-folder-node>
       </template>
     </div>
   </template>
   <script src="chrome://bookmarks/folder_node.js"></script>
 </dom-module>