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

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

Index: chrome/browser/resources/file_manager/css/file_manager.css
diff --git a/chrome/browser/resources/file_manager/css/file_manager.css b/chrome/browser/resources/file_manager/css/file_manager.css
index 80679d41920e39a5f9b2207574c1cb7051c6f74d..20cc2d06824d68b1cdd8dc19e57fff374ee207ad 100644
--- a/chrome/browser/resources/file_manager/css/file_manager.css
+++ b/chrome/browser/resources/file_manager/css/file_manager.css
@@ -4,12 +4,14 @@
 
 /* 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']),
@@ -1451,6 +1453,7 @@ body:not([type='saveas-file']) #filename-input-box {
 /* Dimmed items */
 
 body[type='folder'] .file,
+body[type='upload-folder'] .file,
 body[drive] .dialog-container[connection='offline'] .dim-offline {
   opacity: 0.4;
 }