Adds @cookie to @jar, emitting the 'changed' signal if we are modifying
an existing cookie or adding a valid new cookie ('valid' means
that the cookie's expire date is not in the past).
@cookie will be 'stolen' by the jar, so don't free it afterwards.
Adds @cookie to @jar, emitting the 'changed' signal if we are modifying an existing cookie or adding a valid new cookie ('valid' means that the cookie's expire date is not in the past).
@cookie will be 'stolen' by the jar, so don't free it afterwards.