Recent and Search in Bookmark manager don't allow Open operations.

chrome/browser/resources/bookmark_manager/js/main.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function() {
 /** @const */ var BookmarkList = bmm.BookmarkList;
 /** @const */ var BookmarkTree = bmm.BookmarkTree;
 /** @const */ var Command = cr.ui.Command;
 /** @const */ var CommandBinding = cr.ui.CommandBinding;
 /** @const */ var LinkKind = cr.LinkKind;
@@ skipping 296 matching lines @@
   processHash();
 }
 
 /**
  * Returns the bookmark nodes that should be opened through the open context
  * menu commands.
  * @param {HTMLElement} target The target list or tree.
  * @return {!Array.<!BookmarkTreeNode>} .
  */
 function getBookmarkNodesForOpenCommands(target) {
-  if (target == tree)
-    return tree.selectedFolders;
-  var listItems = list.selectedItems;
-  return listItems.length ? listItems : list.dataModel.slice();
+  if (target == tree) {
+    var folderItem = tree.selectedItem;
+    return (folderItem == recentTreeItem || folderItem == searchTreeItem) ?
+        list.dataModel.slice() : tree.selectedFolders;
+  }
+  var items = list.selectedItems;
+  return items.length == 0 ? list.dataModel.slice() : items;

[yosin_UTC9, 2013/04/15 01:28:26]

nit: return items.length ? items : list.dataModel.slice();

[Tom Cassiotis, 2013/04/15 01:40:33]

Done.

 }
 
 /**
  * Helper function that updates the canExecute and labels for the open-like
  * commands.
  * @param {!cr.ui.CanExecuteEvent} e The event fired by the command system.
  * @param {!cr.ui.Command} command The command we are currently processing.
  */
 function updateOpenCommands(e, command) {
   var selectedItems = getBookmarkNodesForOpenCommands(e.target);
@@ skipping 946 matching lines @@
   });
 
   initializeSplitter();
   bmm.addBookmarkModelListeners();
   dnd.init(selectItemsAfterUserAction);
   tree.reload();
 }
 
 initializeBookmarkManager();
 })();