@filename will be read in at startup to create an initial set of
cookies. If @read_only is %FALSE, then the non-session cookies will
be written to @filename when the 'changed' signal is emitted from
the jar. (If @read_only is %TRUE, then the cookie jar will only be
used for this session, and changes made to it will be lost when the
jar is destroyed.)
Creates a #SoupCookieJarDB.
@filename will be read in at startup to create an initial set of cookies. If @read_only is %FALSE, then the non-session cookies will be written to @filename when the 'changed' signal is emitted from the jar. (If @read_only is %TRUE, then the cookie jar will only be used for this session, and changes made to it will be lost when the jar is destroyed.)