Class UserContentFilter

Obtain the identifier previously used to save the user_content_filter in the #WebKitUserContentFilterStore.

Atomically increments the reference count of user_content_filter by one. This function is MT-safe and may be called from any thread.

Atomically decrements the reference count of user_content_filter by one. If the reference count drops to 0, all the memory allocated by the #WebKitUserContentFilter is released. This function is MT-safe and may be called from any thread.