Sets user data to menu.
This function can be used from a Web Process extension to set user data that can be retrieved from the UI Process using webkitwebprocessextension.context_menu.ContextMenu.getUserData. If the user_data #GVariant is floating, it is consumed.
a #GVariant
Sets user data to menu.
This function can be used from a Web Process extension to set user data that can be retrieved from the UI Process using webkitwebprocessextension.context_menu.ContextMenu.getUserData. If the user_data #GVariant is floating, it is consumed.