Actually what he is trying to say that He is customizing code for creating courses by adding that when ever a new course is created it should have a default file uploaded a resource which is kept at $file_path_new="$CFG->dirroot\course\uploads\Course_Outline_Document.pdf";
He added his code for creating a new file but couldnt add it as a file resource in course using add_module_info() function.
The context function he used is deprecated thats why its commented in his code.