anchor.diff:    (web-view (g-object webkit-web-view))
     (content :string)
     (content-uri :string)
  -  (base-uri :string)) ; XXX: can be NULL
  +  (base-uri :string))
   (export 'webkit-web-view-load-alternate-html)
   
   (defcfun "webkit_web_view_load_plain_text" :void
  
positive.code:   (options webkit-snapshot-options)
    (cancellable :pointer) ; XXX: GCancellable
    (callback :pointer) ; XXX: GAsyncReadyCallback
    (user-data :pointer)) ; XXX: gpointer
  (export 'webkit-web-view-get-snapshot)
  
  (defcfun ("webkit_web_view_get_snapshot_finish" %webkit-web-view-get-snapshot-finish) :pointer ; XXX: cairo_surface_t
  
negative.code:   (save-mode webkit-save-mode)
    (cancellable :pointer) ; XXX: GCancellable
    (callback :pointer) ; XXX: GAsyncReadyCallback
    (user-data :pointer))
  (export 'webkit-web-view-save-to-file)
  
  (defcfun ("webkit_web_view_save_to_file_finish" %webkit-web-view-save-to-file-finish) :boolean
  