Change dialog texts for folder upload to explicitly indicate it's for 'Uploading'

chrome/browser/resources/file_manager/css/file_manager.css

 /* 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. */
 
 /* 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'],
 body[type='full-page'] [invisibleif~='full-page'],
 
 body[type='folder'] [visibleif]:not([visibleif~='folder']),
+body[type='upload-folder'] [visibleif]:not([visibleif~='upload-folder']),
 body[type='saveas-file'] [visibleif]:not([visibleif~='saveas-file']),
 body[type='open-file'] [visibleif]:not([visibleif~='open-file']),
 body[type='open-multi-file'] [visibleif]:not([visibleif~='open-multi-file']),
 body[type='full-page'] [visibleif]:not([visibleif~='full-page']) {
   display: none !important;
 }
 
 html {
   height: 100%;
 }
@@ skipping 1421 matching lines @@
 /* A vertical spring. */
 .vertical-spacer {
   -webkit-box-flex: 1;
   -webkit-box-orient: vertical;
   display: -webkit-box;
 }
 
 /* Dimmed items */
 
 body[type='folder'] .file,
+body[type='upload-folder'] .file,
 body[drive] .dialog-container[connection='offline'] .dim-offline {
   opacity: 0.4;
 }
 
 /* Overlay pane covering the entire file manager window (e.g. image editor)*/
 .overlay-pane {
   border: none;
   height: 100%;
   left: 0;
   position: absolute;
@@ skipping 415 matching lines @@
 }
 
 .error-dialog-frame .cr-dialog-close,
 .error-dialog-frame .cr-dialog-title {
   display: none;
 }
 
 .error-dialog-frame .cr-dialog-text {
   text-align: center;
 }