X2Pro is an audio conversion utility and as such it ignores any video references in the Final Cut XML file. However, by following some simple steps, it is easy to transfer a fully rendered video track into Pro Tools
Export the Final Cut XML for the project as normal and process through X2Pro Audio Convert. In Final Cut Pro X, export a video only QuickTime file for the same project, using the Export Media option on the Share menu (or Cmd+E). Using a video codec of H.264 works well.
Open the AAF file as a session in Pro Tools as normal then import the QuickTime movie into Pro Tools using the File -> Import -> Video menu item.