Fix JS errors of FileTransferController.

ui/file_manager/file_manager/foreground/js/file_transfer_controller.js

Index: ui/file_manager/file_manager/foreground/js/file_transfer_controller.js
diff --git a/ui/file_manager/file_manager/foreground/js/file_transfer_controller.js b/ui/file_manager/file_manager/foreground/js/file_transfer_controller.js
index 4f2e278e548987f603171e259773c0c083a4e39e..adc9be5409ef60aaaf8d6c7280b3533136aeb558 100644
--- a/ui/file_manager/file_manager/foreground/js/file_transfer_controller.js
+++ b/ui/file_manager/file_manager/foreground/js/file_transfer_controller.js
@@ -1083,6 +1083,7 @@ FileTransferController.prototype.onFileSelectionChangedThrottled_ = function() {
   for (var i = 0; i < entries.length; i++) {
     if (entries[i].isFile)
       fileEntries.push(entries[i]);
+    asyncData[entries[i].toURL()] = {externalFileUrl: '', file: null};
   }
   var containsDirectory = this.selectionHandler_.selection.directoryCount > 0;
 
@@ -1092,7 +1093,6 @@ FileTransferController.prototype.onFileSelectionChangedThrottled_ = function() {
   // asynchronous operations.
   if (!containsDirectory) {
     for (var i = 0; i < fileEntries.length; i++) {
-      asyncData[fileEntries[i].toURL()] = {externalFileUrl: '', file: null};
       fileEntries[i].file(function(data, file) {
         data.file = file;
       }.bind(null, asyncData[fileEntries[i].toURL()]));