Code review comment for lp:~axlrose112/midori/webmedia-now-playing

This merge proposal contains mostly the same changes as lp:~axlrose112/midori/restful-client. A restful client and a webmedia extension change look mostly unrelated to me (but correct me if I'm wrong), so these should be separate merge proposals: one for the new extension, the restful client, and another for webmedia extension changes.