Type definition for a function that will be called to initialize the web extensions when the web process starts, and which receives as additional argument the user data set with webkit_web_context_set_web_extensions_initialization_user_data().
a #WebKitWebExtension
a #GVariant
Type definition for a function that will be called to initialize the web extensions when the web process starts, and which receives as additional argument the user data set with webkit_web_context_set_web_extensions_initialization_user_data().