When calling for the wireless security widgets, the code
simply assumes that the corresponding GType is initialized.
This may not always be true, which leads to a nasty crash
every time e.g. we open the network connection editor dialog.
This commit fixes that by introducing a new standard macro
wrapping wireless_security_get_type(), and ensuring the type
is initializing when calling wireless_security_init(), thus
protecting every code path from this crash.
This commit also makes CePageSecurity use the new macro for
better legibility.
https://bugzilla.gnome.org/show_bug.cgi?id=785581
21943a42bf