e478cc4c4e
Currently function shell_get_thumbnail_for_recent_info located in src/shell-global.c is used to get thumbnails for recently used files. However, it only works if you have a GtkRecentInfo object for the file, even though the thumbnail generation code doesn't depend on it. This commit renames the function to shell_get_thumbnail and makes it generic so that it just takes two strings: a filename and a mimetype.
The file is empty.