MD Settings: ignore modified key events in the profile avatar grid

ui/webui/resources/js/cr/ui/focus_row.js

 // Copyright 2014 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('cr.ui', function() {
   /**
    * A class to manage focus between given horizontally arranged elements.
    *
    * Pressing left cycles backward and pressing right cycles forward in item
    * order. Pressing Home goes to the beginning of the list and End goes to the
@@ skipping 236 matching lines @@
       // Only accept left mouse clicks.
       if (e.button)
         return;
 
       // Allow the element under the mouse cursor to be focusable.
       if (!e.currentTarget.disabled)
         e.currentTarget.tabIndex = 0;
     },
 
     /**
-     * @param {Event} e The keydown event.
+     * @param {!Event} e The keydown event.
      * @private
      */
     onKeydown_: function(e) {
       var elements = this.getFocusableElements();
       var currentElement = /** @type {!Element} */(e.currentTarget);
       var elementIndex = elements.indexOf(currentElement);
       assert(elementIndex >= 0);
 
       if (this.delegate && this.delegate.onKeydown(this, e))
         return;
 
-      if (e.altKey || e.ctrlKey || e.metaKey || e.shiftKey)
+      if (hasKeyModifiers(e))
         return;
 
       var index = -1;
 
       if (e.key == 'ArrowLeft')
         index = elementIndex + (isRTL() ? 1 : -1);
       else if (e.key == 'ArrowRight')
         index = elementIndex + (isRTL() ? -1 : 1);
       else if (e.key == 'Home')
         index = 0;
       else if (e.key == 'End')
         index = elements.length - 1;
 
       var elementToFocus = elements[index];
       if (elementToFocus) {
         this.getEquivalentElement(elementToFocus).focus();
         e.preventDefault();
       }
     },
   };
 
   return {
     FocusRow: FocusRow,
   };
 });