Implement a policy to autologin a public account.

chrome/browser/chromeos/login/webui_login_display.cc

Index: chrome/browser/chromeos/login/webui_login_display.cc
diff --git a/chrome/browser/chromeos/login/webui_login_display.cc b/chrome/browser/chromeos/login/webui_login_display.cc
index 7b211d43464de09c221052a2d0282e959494d5e4..b80a28eec43964c831ab7b479c10b286f5b736d0 100644
--- a/chrome/browser/chromeos/login/webui_login_display.cc
+++ b/chrome/browser/chromeos/login/webui_login_display.cc
@@ -278,6 +278,11 @@ void WebUILoginDisplay::LoadSigninWallpaper() {
   WallpaperManager::Get()->SetDefaultWallpaper();
 }
 
+void WebUILoginDisplay::OnSigninScreenReady() {
+  if (delegate_)
+    delegate_->OnSigninScreenReady();
+}
+
 void WebUILoginDisplay::RemoveUser(const std::string& username) {
   UserManager::Get()->RemoveUser(username, this);
 }
@@ -344,6 +349,8 @@ void WebUILoginDisplay::OnUserActivity() {
   if (!password_clear_timer_.IsRunning())
     StartPasswordClearTimer();
   password_clear_timer_.Reset();
+  if (delegate_)
+    delegate_->ResetPublicSessionAutoLoginTimer();
 }
 
 void WebUILoginDisplay::StartPasswordClearTimer() {