Paste can not happen when search item is selected in tree.

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() {
 'use strict';
 
 /** @const */ var BookmarkList = bmm.BookmarkList;
 /** @const */ var BookmarkTree = bmm.BookmarkTree;
 /** @const */ var Command = cr.ui.Command;
@@ skipping 417 matching lines @@
  * @param {Function=} opt_f Function to call after the state has been updated.
  */
 function updatePasteCommand(opt_f) {
   function update(commandId, canPaste) {
     $(commandId).disabled = !canPaste;
   }
 
   var promises = [];
 
   // The folders menu.
-  if (bmm.tree.selectedItem) {
+  // We can not paste into search item in tree.
+  if (bmm.tree.selectedItem && bmm.tree.selectedItem != searchTreeItem) {
     promises.push(new Promise(function(resolve) {
       var id = bmm.tree.selectedItem.bookmarkId;
       chrome.bookmarkManagerPrivate.canPaste(id, function(canPaste) {
         update('paste-from-folders-menu-command', canPaste);
         resolve(canPaste);
       });
     }));
   } else {
     // Tree's not loaded yet.
     update('paste-from-folders-menu-command', false);
@@ skipping 1072 matching lines @@
 
   cr.ui.FocusOutlineManager.forDocument(document);
   initializeSplitter();
   bmm.addBookmarkModelListeners();
   dnd.init(selectItemsAfterUserAction);
   bmm.tree.reload();
 }
 
 initializeBookmarkManager();
 })();