[WIP] MD Bookmarks Drag and Drop.

chrome/browser/resources/md_bookmarks/folder_node.js

Index: chrome/browser/resources/md_bookmarks/folder_node.js
diff --git a/chrome/browser/resources/md_bookmarks/folder_node.js b/chrome/browser/resources/md_bookmarks/folder_node.js
index ff0f867a50c79ad0045c1366287a7531ca5d54c2..2585d4f7fb25d70aad8f4bceb3c148cdbc06bc9c 100644
--- a/chrome/browser/resources/md_bookmarks/folder_node.js
+++ b/chrome/browser/resources/md_bookmarks/folder_node.js
@@ -118,5 +118,13 @@ Polymer({
    */
   isFolder_: function(itemId) {
     return !this.getState().nodes[itemId].url;
-  }
+  },
+
+  /**
+   * @private
+   * @return {boolean}
+   */
+  isRootFolder_: function() {
+    return this.depth == 0;
+  },
 });