CefRequestHandlerGetAuthCredentials Method

Called on the IO thread when the browser needs credentials from the user. |isProxy| indicates whether the host is a proxy server. |host| contains the hostname and |port| contains the port number. |realm| is the realm of the challenge and may be empty. |scheme| is the authentication scheme used, such as "basic" or "digest", and will be empty if the source of the request is an FTP server. Return true to continue the request and call CefAuthCallback::Continue() either in this method or at a later time when the authentication information is available. Return false to cancel the request immediately.

protected virtual bool GetAuthCredentials(
	CefBrowser browser,
	CefFrame frame,
	bool isProxy,
	string host,
	int port,
	string realm,
	string scheme,
	CefAuthCallback callback
)