Update strings for ash palette and rename options/settings files.

chrome/browser/resources/options/chromeos/note_overlay.js

-// Copyright (c) 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.
-
-cr.define('options', function() {
-  /**
-   * Encapsulated handling of the note overlay.
-   * @constructor
-   * @extends {options.SettingsDialog}
-   */
-  function NoteOverlay() {
-    options.SettingsDialog.call(this, 'note-overlay',
-         loadTimeData.getString('noteOverlayTabTitle'),
-        'note-overlay',
-        assertInstanceof($('note-confirm'), HTMLButtonElement),
-        assertInstanceof($('note-cancel'), HTMLButtonElement));
-  }
-
-  cr.addSingletonGetter(NoteOverlay);
-
-  NoteOverlay.prototype = {
-    __proto__: options.SettingsDialog.prototype,
-
-    /** @override */
-    initializePage: function() {
-      options.SettingsDialog.prototype.initializePage.call(this);
-    },
-  };
-
-  // Export
-  return {
-    NoteOverlay: NoteOverlay
-  };
-});