Files.app: Prevent dragging files while renaming is in progress.

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 8623009e34ee1bb4fec290f3e8c3cd98bc627fe8..2eeb6a7e2d89c3c999d5699baf9595f0a27dee79 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
@@ -700,6 +700,13 @@ FileTransferController.prototype.renderThumbnail_ = function() {
  * @private
  */
 FileTransferController.prototype.onDragStart_ = function(list, event) {
+  // If renaming is in progress, drag operation should be used for selecting
+  // substring of the text. So we don't drag files here.
+  if (this.listContainer_.renameInput.currentEntry) {
+    event.preventDefault();
+    return;
+  }
+
   // Check if a drag selection should be initiated or not.
   if (list.shouldStartDragSelection(event)) {
     event.preventDefault();