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

chrome/test/data/webui/cr_elements/cr_profile_avatar_selector_tests.js

 // Copyright 2016 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 Suite of tests for cr-profile-avatar-selector. */
 cr.define('cr_profile_avatar_selector', function() {
   function registerTests() {
     suite('cr-profile-avatar-selector', function() {
       /** @type {CrProfileAvatarSelectorElement} */
       var avatarSelector = null;
@@ skipping 70 matching lines @@
            function(done) {
         avatarSelector.addEventListener('iron-activate',
                                         function(event) {
           assertEquals(event.detail.selected, 'chrome://avatar2.png');
           done();
         });
 
         // Simulate tapping the second avatar.
         MockInteractions.tap(avatarSelector.$['avatar-grid'].items[1]);
       });
+
+      test('Ignores modified key events', function() {
+        var selector = avatarSelector.$['avatar-grid'];
+        var items = selector.items;
+
+        selector._setFocusedItem(items[0]);
+        assertTrue(items[0].focused);
+
+        MockInteractions.keyDownOn(items[0], 39, [], 'ArrowRight');
+        assertTrue(items[1].focused);
+
+        MockInteractions.keyDownOn(items[0], 37, [], 'ArrowLeft');
+        assertTrue(items[0].focused);
+
+        avatarSelector.ignoreModifiedKeyEvents = true;
+
+        MockInteractions.keyDownOn(items[0], 39, 'alt', 'ArrowRight');
+        assertTrue(items[0].focused);
+
+        MockInteractions.keyDownOn(items[0], 39, 'ctrl', 'ArrowRight');
+        assertTrue(items[0].focused);
+
+        MockInteractions.keyDownOn(items[0], 39, 'meta', 'ArrowRight');
+        assertTrue(items[0].focused);
+
+        MockInteractions.keyDownOn(items[0], 39, 'shift', 'ArrowRight');
+        assertTrue(items[0].focused);
+      });
     });
   }
 
   return {
     registerTests: registerTests,
   };
 });