Context menu is not getting hided in chrome://bookmarks after delete key press.

ui/webui/resources/js/cr/ui/menu_button.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.
 
 // <include src="../../assert.js">
 
 cr.exportPath('cr.ui');
 
 /**
  * Enum for type of hide. Delayed is used when called by clicking on a
@@ skipping 105 matching lines @@
             }
           }
 
           // Hide the focus ring on mouse click.
           this.classList.add('using-mouse');
           break;
         case 'keydown':
           this.handleKeyDown(e);
           // If the menu is visible we let it handle all the keyboard events.
           if (this.isMenuShown() && e.currentTarget == this.ownerDocument) {
-            if (this.menu.handleKeyDown(e)) {
-              e.preventDefault();
-              e.stopPropagation();
-            }
+            this.menu.handleKeyDown(e);
+            e.preventDefault();
+            e.stopPropagation();
           }
 
           // Show the focus ring on keypress.
           this.classList.remove('using-mouse');
           break;
         case 'focus':
           if (e.target instanceof Node && !this.contains(e.target) &&
               !this.menu.contains(e.target)) {
             this.hideMenu();
             // Show the focus ring on focus - if it's come from a mouse event,
@@ skipping 160 matching lines @@
         'drop-down-arrow-hover', ARROW_WIDTH, ARROW_HEIGHT, opt_hoverColor);
     createDropDownArrowCanvas(
         'drop-down-arrow-active', ARROW_WIDTH, ARROW_HEIGHT, opt_activeColor);
   };
 
   // Export
   return {
     MenuButton: MenuButton,
   };
 });