Reviewed by Martin Robinson.

        [GTK] Fix transfer annotations for WebKitGTK+ static API
        https://bugs.webkit.org/show_bug.cgi?id=46244

        Deal with all the warnings related to transfer issues. Mostly the
        problem was the transfer being missing, but there were also typos
        in the function name or missing ':' at the end of the function
        name in the gtk-doc.

        * webkit/webkitdownload.cpp:
        * webkit/webkitnetworkrequest.cpp:
        * webkit/webkitnetworkresponse.cpp:
        * webkit/webkitsecurityorigin.cpp:
        * webkit/webkitwebdatabase.cpp:
        * webkit/webkitwebdatasource.cpp:
        * webkit/webkitwebframe.cpp:
        * webkit/webkitwebhistoryitem.cpp:
        * webkit/webkitwebinspector.cpp:
        * webkit/webkitwebresource.cpp:
        * webkit/webkitwebsettings.cpp:
        * webkit/webkitwebview.cpp:
        (webkit_web_view_class_init):
        (webkit_web_view_get_main_frame):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@68040 268f45cc-cd09-0410-ab3c-d52691b4dbfc