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

chrome/browser/resources/print_preview/previewarea/preview_area.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.
 
 /**
  * @typedef {{accessibility: Function,
  *            documentLoadComplete: Function,
  *            getHeight: Function,
  *            getHorizontalScrollbarThickness: Function,
  *            getPageLocationNormalized: Function,
@@ skipping 242 matching lines @@
      * Processes a keyboard event that could possibly be used to change state of
      * the preview plugin.
      * @param {KeyboardEvent} e Keyboard event to process.
      */
     handleDirectionalKeyEvent: function(e) {
       // Make sure the PDF plugin is there.
       // We only care about: PageUp, PageDown, Left, Up, Right, Down.
       // If the user is holding a modifier key, ignore.
       if (!this.plugin_ ||
           !arrayContains([33, 34, 37, 38, 39, 40], e.keyCode) ||
-          e.metaKey || e.altKey || e.shiftKey || e.ctrlKey) {
+          hasKeyModifiers(e)) {
         return;
       }
 
       // Don't handle the key event for these elements.
       var tagName = document.activeElement.tagName;
       if (arrayContains(['INPUT', 'SELECT', 'EMBED'], tagName)) {
         return;
       }
 
       // For the most part, if any div of header was the last clicked element,
@@ skipping 391 matching lines @@
       // being draggable.
       this.plugin_.style.pointerEvents = isDragging ? 'none' : 'auto';
     }
   };
 
   // Export
   return {
     PreviewArea: PreviewArea
   };
 });