using proper types for webkit variants, see #16329

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76743 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
fixes 64 bit to 32 warnings, see #16329

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76744 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775