Reviewed by darin.

        Reworked KConfig and plugin architecture to be much more sane.
        This is part one.  Once this lands, I'll move it under platform with a better name.

        Darin had several great suggested further improvements as part of:
        http://bugzilla.opendarwin.org/show_bug.cgi?id=7451
        I'll make some of those when I move this to platform.

        No layout test possible (no way to control which plugins DRT sees).

        * khtml/ecma/kjs_navigator.cpp:
        (KJS::PluginBase::PluginBase):
        (KJS::PluginBase::~PluginBase):
        (KJS::PluginBase::refresh):
        (KJS::Plugins::getValueProperty):
        (KJS::Plugins::nameGetter):
        (KJS::Plugins::getOwnPropertySlot):
        (KJS::MimeTypes::getValueProperty):
        (KJS::MimeTypes::nameGetter):
        (KJS::MimeTypes::getOwnPropertySlot):
        (KJS::Plugin::getValueProperty):
        (KJS::Plugin::nameGetter):
        (KJS::Plugin::getOwnPropertySlot):
        * khtml/ecma/kjs_navigator.h:
        * khtml/ecma/kjs_window.cpp:
        * kwq/KWQKConfigBase.h:
        (WebCore::PluginInfoStore::PluginInfoStore):
        * kwq/KWQKConfigBase.mm:
        (WebCore::PluginInfoStore::createPluginInfoForPluginAtIndex):
        (WebCore::PluginInfoStore::pluginCount):
        (WebCore::refreshPlugins):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@13014 268f45cc-cd09-0410-ab3c-d52691b4dbfc