Implement auto-login for ARC kiosk.

chrome/browser/chromeos/login/lock/webui_screen_locker.cc

Index: chrome/browser/chromeos/login/lock/webui_screen_locker.cc
diff --git a/chrome/browser/chromeos/login/lock/webui_screen_locker.cc b/chrome/browser/chromeos/login/lock/webui_screen_locker.cc
index 4d6e0c43afe1b77f0d6bf73cfb3540ff86eb4234..f962b73a247cb015ae509a17767713a93035229c 100644
--- a/chrome/browser/chromeos/login/lock/webui_screen_locker.cc
+++ b/chrome/browser/chromeos/login/lock/webui_screen_locker.cc
@@ -236,6 +236,10 @@ void WebUIScreenLocker::OnSigninScreenReady() {
   VLOG(2) << "Lock screen signin screen is ready";
 }
 
+void WebUIScreenLocker::OnGaiaScreenReady() {
+  VLOG(2) << "Lock screen gaia screen is ready";
+}
+
 void WebUIScreenLocker::OnStartEnterpriseEnrollment() {
   NOTREACHED();
 }
@@ -256,8 +260,7 @@ void WebUIScreenLocker::ShowWrongHWIDScreen() {
   NOTREACHED();
 }
 
-void WebUIScreenLocker::ResetPublicSessionAutoLoginTimer() {
-}
+void WebUIScreenLocker::ResetAutoLoginTimer() {}
 
 void WebUIScreenLocker::ResyncUserData() {
   NOTREACHED();