mime_policy_cb(WebKitWebView *web_view, WebKitWebFrame *frame, WebKitNetworkRequest *request, gchar *mime_type, WebKitWebPolicyDecision *policy_decision, gpointer user_data);
WebKitWebView*
create_web_view_cb (WebKitWebView *web_view, WebKitWebFrame *frame, gpointer user_data);
mime_policy_cb(WebKitWebView *web_view, WebKitWebFrame *frame, WebKitNetworkRequest *request, gchar *mime_type, WebKitWebPolicyDecision *policy_decision, gpointer user_data);
WebKitWebView*
create_web_view_cb (WebKitWebView *web_view, WebKitWebFrame *frame, gpointer user_data);