Sets the icon for the bookmark for @uri. If @href is %NULL, unsets the currently set icon. @href can either be a full URL for the icon file or the icon name following the Icon Naming specification.
If no bookmark for @uri is found one is created.
a valid URI
the URI of the icon for the bookmark, or %NULL
the MIME type of the icon for the bookmark
2.12
See Implementation
Sets the icon for the bookmark for @uri. If @href is %NULL, unsets the currently set icon. @href can either be a full URL for the icon file or the icon name following the Icon Naming specification.
If no bookmark for @uri is found one is created.