[MD Bookmarks] Add keyboard navigation and selection to bookmark list.

chrome/browser/resources/md_bookmarks/actions.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 Module for functions which produce action objects. These are
  * listed in one place to document available actions and their parameters.
  */
 
 cr.define('bookmarks.actions', function() {
@@ skipping 173 matching lines @@
     return {
       name: 'select-items',
       clear: config.clear,
       toggle: config.toggle,
       anchor: newAnchor,
       items: toSelect,
     };
   }
 
   /**
+   * @param {Array<string>} ids
+   * @param {BookmarksPageState} state
+   * @return {!Action}
+   */
+  function selectAll(ids, state) {
+    return {
+      name: 'select-items',
+      clear: true,
+      toggle: false,
+      anchor: state.selection.anchor,
+      items: ids,
+    };
+  }
+
+  /**
+   * @param {string} id
+   * @return {!Action}
+   */
+  function updateAnchor(id) {
+    return {
+      name: 'update-anchor',
+      anchor: id,
+    };
+  }
+
+  /**
    * @param {string} term
    * @return {!Action}
    */
   function setSearchTerm(term) {
     if (!term)
       return clearSearch();
 
     return {
       name: 'start-search',
       term: term,
@@ skipping 14 matching lines @@
   return {
     changeFolderOpen: changeFolderOpen,
     clearSearch: clearSearch,
     createBookmark: createBookmark,
     deselectItems: deselectItems,
     editBookmark: editBookmark,
     moveBookmark: moveBookmark,
     refreshNodes: refreshNodes,
     removeBookmark: removeBookmark,
     reorderChildren: reorderChildren,
+    selectAll: selectAll,
     selectFolder: selectFolder,
     selectItem: selectItem,
     setSearchResults: setSearchResults,
     setSearchTerm: setSearchTerm,
+    updateAnchor: updateAnchor,
   };
 });