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.WebContext.setWebProcessExtensionsInitializationUserData.
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.WebContext.setWebProcessExtensionsInitializationUserData.