GRIT: put <if> and <include> behind comments in .js files to make syntactically valid JS

chrome/browser/resources/settings/reset_page/reset_page.js

 // Copyright 2015 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
  * 'settings-reset-page' is the settings page containing reset
  * settings.
  *
  * Example:
  *
  *    <iron-animated-pages>
  *      <settings-reset-page prefs="{{prefs}}">
  *      </settings-reset-page>
  *      ... other pages ...
  *    </iron-animated-pages>
  */
 Polymer({
   is: 'settings-reset-page',
 
   behaviors: [settings.RouteObserverBehavior],
 
   properties: {
-<if expr="chromeos">
+// <if expr="chromeos">
     /** @private */
     showPowerwashDialog_: Boolean,
-</if>
+// </if>
 
     /** @private */
     allowPowerwash_: {
       type: Boolean,
       value: cr.isChromeOS ? loadTimeData.getBoolean('allowPowerwash') : false
     },
 
     /** @private */
     showResetProfileDialog_: {
       type: Boolean,
@@ skipping 16 matching lines @@
   onShowResetProfileDialog_: function() {
     settings.navigateTo(settings.Route.RESET_DIALOG,
                         new URLSearchParams('origin=userclick'));
   },
 
   /** @private */
   onResetProfileDialogClose_: function() {
     settings.navigateToPreviousRoute();
   },
 
-<if expr="chromeos">
+// <if expr="chromeos">
   /**
    * @param {!Event} e
    * @private
    */
   onShowPowerwashDialog_: function(e) {
     e.preventDefault();
     this.showPowerwashDialog_ = true;
   },
 
   /** @private */
   onPowerwashDialogClose_: function() {
     this.showPowerwashDialog_ = false;
   },
-</if>
+// </if>
 });