MD Settings: update dialogs to focus without ink when using mouse

chrome/browser/resources/settings/device_page/storage.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
  * 'settings-storage' is the settings subpage for storage settings.
  */
 cr.exportPath('settings');
 
@@ skipping 287 matching lines @@
         return 'space-low';
       case settings.StorageSpaceState.CRITICALLY_LOW:
         return 'space-critically-low';
       default:
         return '';
     }
   },
 
   /** @private */
   onCloseDriveCacheDialog_: function() {
-    this.$$('#deleteButton').focus();
+    cr.ui.focusWithoutInk(this.$$('#deleteButton'));
   },
 });