Add material design toggle ripple element.

ui/file_manager/file_manager/foreground/css/file_manager.css

 /* Copyright (c) 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. */
 
 /* Special attribute used in HTML to hide elements. */
 body[type='folder'] [invisibleif~='folder'],
 body[type='upload-folder'] [invisibleif~='upload-folder'],
 body[type='saveas-file'] [invisibleif~='saveas-file'],
 body[type='open-file'] [invisibleif~='open-file'],
 body[type='open-multi-file'] [invisibleif~='open-multi-file'],
@@ skipping 330 matching lines @@
   min-width: 0;
   outline: none;
   padding: 0;
   width: 32px;
 }
 
 .dialog-header button.icon-button > iron-icon {
   margin: 8px;
 }
 
+.dialog-header button.icon-button > files-toggle-ripple {
+  -webkit-margin-start: -7px;
+  height: 46px;
+  margin-top: -7px;
+  width: 46px;
+}
+
 #search-button {
   background-image: -webkit-image-set(
       url(../images/files/ui/search_white.png) 1x,
       url(../images/files/ui/2x/search_white.png) 2x);
 }
 
 body.check-select #search-button {
   background-image: -webkit-image-set(
       url(../images/files/ui/search.png) 1x,
       url(../images/files/ui/2x/search.png) 2x);
@@ skipping 1760 matching lines @@
   padding: 20px 15px;
 }
 
 .text-measure {
   pointer-events: none;
   position: absolute;
   top: 0;
   visibility: hidden;
   z-index: -1;
 }