MD Bookmarks: Add 'Open' command, to open in either the BMM or in new tabs

chrome/test/data/webui/md_bookmarks/list_test.js

 // Copyright 2016 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.
 
 suite('<bookmarks-list>', function() {
   var list;
   var store;
 
   setup(function() {
     store = new bookmarks.TestStore({
@@ skipping 33 matching lines @@
     assertEquals('select-items', store.lastAction.name);
     assertFalse(store.lastAction.add);
     assertEquals('1', store.lastAction.anchor);
     assertDeepEquals(['1'], store.lastAction.items);
 
     store.data.selection.anchor = '1';
     customClick(items[2], {shiftKey: true, ctrlKey: true});
 
     assertEquals('select-items', store.lastAction.name);
     assertTrue(store.lastAction.add);
-    assertEquals('5', store.lastAction.anchor);
+    assertEquals('1', store.lastAction.anchor);
     assertDeepEquals(['1', '3', '5'], store.lastAction.items);
   });
 
   test('deselects items on click outside of card', function() {
     customClick(list);
     assertEquals('deselect-items', store.lastAction.name);
   });
 
   test('adds, deletes, and moves update displayedList_', function() {
     list.displayedIds_ = ['1', '7', '3', '5'];
     assertDeepEquals(list.displayedIds_, list.displayedList_.map(n => n.id));
 
     list.displayedIds_ = ['1', '3', '5'];
     assertDeepEquals(list.displayedIds_, list.displayedList_.map(n => n.id));
 
     list.displayedIds_ = ['1', '3', '7', '5'];
     assertDeepEquals(list.displayedIds_, list.displayedList_.map(n => n.id));
   });
 });