Move from drive/other to drive/root should not use the copy+delete bypass.

chrome/browser/chromeos/drive/file_system/move_operation.cc

Index: chrome/browser/chromeos/drive/file_system/move_operation.cc
diff --git a/chrome/browser/chromeos/drive/file_system/move_operation.cc b/chrome/browser/chromeos/drive/file_system/move_operation.cc
index c7e490a23e91e465de2c9596c451f5ef94558a1b..fea40b6af4287d383ea811a2a3ed4a86b5586c85 100644
--- a/chrome/browser/chromeos/drive/file_system/move_operation.cc
+++ b/chrome/browser/chromeos/drive/file_system/move_operation.cc
@@ -212,6 +212,13 @@ void MoveOperation::RemoveFromDirectory(
     const FileOperationCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
+  // Moving files out from "drive/other" special folder for storing orphan files
+  // has no meaning in the server. Just skip the step.
+  if (util::IsSpecialResourceId(directory_resource_id)) {
+    callback.Run(FILE_ERROR_OK);
+    return;
+  }
+
   scheduler_->RemoveResourceFromDirectory(
       directory_resource_id,
       resource_id,