MD Bookmarks: Make shortcuts for select all/deselect all global

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

 // Copyright 2017 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.
 
 /**
  * @fileoverview Tests for MD Bookmarks which are run as interactive ui tests.
  * Should be used for tests which care about focus.
  */
 
 var ROOT_PATH = '../../../../../';
@@ skipping 184 matching lines @@
       keydown('2', 'Delete');
 
       commandManager.assertLastCommand(Command.DELETE, ['2']);
     });
   });
 
   suite('<bookmarks-list>', function() {
     var list;
     var store;
     var items;
+    var commandManager;
     var multiKey = cr.isMac ? 'meta' : 'ctrl';
 
     function keydown(item, key, modifiers) {
       MockInteractions.keyDownOn(item, '', modifiers, key);
     }
 
     setup(function() {
       store = new bookmarks.TestStore({
         nodes: testTree(createFolder(
             '1',
@@ skipping 10 matching lines @@
       store.setReducersEnabled(true);
       store.replaceSingleton();
 
       list = document.createElement('bookmarks-list');
       list.style.height = '100%';
       list.style.width = '100%';
       list.style.position = 'absolute';
       replaceBody(list);
       Polymer.dom.flush();
       items = list.root.querySelectorAll('bookmarks-item');
+
+      commandManager = new TestCommandManager();
+      document.body.appendChild(commandManager);
     });
 
     test('simple keyboard selection', function() {
       var focusedItem = items[0];
       assertEquals('0', focusedItem.getAttribute('tabindex'));
       assertEquals(
           '0', focusedItem.$$('.more-vert-button').getAttribute('tabindex'));
       focusedItem.focus();
 
       keydown(focusedItem, 'ArrowDown');
@@ skipping 24 matching lines @@
       assertDeepEquals(['2'], normalizeSet(store.data.selection.items));
 
       // Moving past the start of the list is a no-op.
       keydown(focusedItem, 'ArrowUp');
       assertEquals('0', focusedItem.getAttribute('tabindex'));
       assertDeepEquals(['2'], normalizeSet(store.data.selection.items));
 
       keydown(focusedItem, 'Escape');
       assertDeepEquals([], normalizeSet(store.data.selection.items));
 
-      keydown(focusedItem, 'a', 'ctrl');
+      keydown(focusedItem, 'a', multiKey);
       assertDeepEquals(
           ['2', '3', '4', '5', '6', '7'],
           normalizeSet(store.data.selection.items));
     });
 
     test('shift selection', function() {
       var focusedItem = items[0];
       focusedItem.focus();
 
       keydown(focusedItem, 'ArrowDown', 'shift');
@@ skipping 69 matching lines @@
       assertDeepEquals(
           ['2', '4', '5'], normalizeSet(store.data.selection.items));
 
       keydown(focusedItem, 'ArrowDown', ['ctrl', 'shift']);
       focusedItem = items[3];
       assertDeepEquals(
           ['2', '4', '5', '6'], normalizeSet(store.data.selection.items));
     });
 
     test('keyboard commands are passed to command manager', function() {
-      var commandManager = new TestCommandManager();
-      document.body.appendChild(commandManager);
       chrome.bookmarkManagerPrivate.removeTrees = function() {}
 
       store.data.selection.items = new Set(['2', '3']);
       store.notifyObservers();
 
       var focusedItem = items[4];
       focusedItem.focus();
 
       keydown(focusedItem, 'Delete');
       // Commands should take affect on the selection, even if something else is
       // focused.
       commandManager.assertLastCommand(Command.DELETE, ['2', '3']);
     });
 
     test('iron-list does not steal focus on enter', function() {
       // Iron-list attempts to focus the whole <bookmarks-item> when pressing
       // enter on the menu button. This checks that we block this behavior
       // during keydown on <bookmarks-list>.
-      var commandManager = new TestCommandManager();
-      document.body.appendChild(commandManager);
-
       var button = items[0].$$('.more-vert-button');
       button.focus();
       keydown(button, 'Enter');
 
       assertEquals(button, items[0].root.activeElement);
     });
   });
 
   mocha.run();
 });