Initialize SafariTheme early in WebKit's instantiation

    Initialize SafariTheme early in WebKit's instantiation

        New versions of SafariTheme will require this initialization. We have
        to use GetProcAddress for now since the initialize method doesn't
        exist in any released SafariTheme.

        Reviewed by Ada.

        * WebKit.vcproj/debug_internal.vsprops: Pick up the debug SafariTheme.
        * WebKitClassFactory.cpp:
        (WebKitClassFactory::WebKitClassFactory): Call STInitialize.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@25528 268f45cc-cd09-0410-ab3c-d52691b4dbfc