Fix closure compilation

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

 // Copyright (c) 2012 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.exportPath('options');
 
 /**
  * @typedef {{
  *   availableColorProfiles: Array<{profileId: number, name: string}>,
  *   colorProfile: number,
@@ skipping 109 matching lines @@
 
   DisplayOptions.prototype = {
     __proto__: Page.prototype,
 
     /**
      * Whether the current output status is mirroring displays or not.
      * @private
      */
     mirroring_: false,
 
-    /*
+    /**
      * Whether the unified desktop is enable or not.
      * @private
      */
     unifiedDesktopEnabled_: false,
 
-    /*
+    /**
      * Whether the unified desktop option should be present.
      * @private
      */
     showUnifiedDesktopOption_: false,
 
     /**
      * The current secondary display layout.
      * @private
      */
     layout_: options.SecondaryDisplayLayout.RIGHT,
@@ skipping 811 matching lines @@
               offset.y + 'px';
           break;
         }
         this.secondaryDisplay_.originalPosition = {
           x: secondaryDiv.offsetLeft, y: secondaryDiv.offsetTop};
       }
     },
 
     /**
      * Called when the display arrangement has changed.
-     * @param {options.MultiDisplayMode} multi display mode.
+     * @param {options.MultiDisplayMode} mode multi display mode.
      * @param {Array<options.DisplayInfo>} displays The list of the display
      *     information.
      * @param {options.SecondaryDisplayLayout} layout The layout strategy.
      * @param {number} offset The offset of the secondary display.
      * @private
      */
     onDisplayChanged_: function(mode, displays, layout, offset) {
       if (!this.visible)
         return;
 
@@ skipping 56 matching lines @@
       mode, displays, layout, offset) {
     DisplayOptions.getInstance().onDisplayChanged_(
         mode, displays, layout, offset);
   };
 
   // Export
   return {
     DisplayOptions: DisplayOptions
   };
 });