Return correct window when user is logged in but before session is started.

chrome/browser/chromeos/login/user_manager.h

Index: chrome/browser/chromeos/login/user_manager.h
diff --git a/chrome/browser/chromeos/login/user_manager.h b/chrome/browser/chromeos/login/user_manager.h
index b807bf47eecd5438c061750448551eb36ba068eb..23d197f4109fa01475ec06ce11a9bd820f45e583 100644
--- a/chrome/browser/chromeos/login/user_manager.h
+++ b/chrome/browser/chromeos/login/user_manager.h
@@ -131,7 +131,9 @@ class UserManager {
   // Called when browser session is started i.e. after
   // browser_creator.LaunchBrowser(...) was called after user sign in.
   // When user is at the image screen IsUserLoggedIn() will return true
-  // but SessionStarted() will return false.
+  // but IsSessionStarted() will return false. During the kiosk splash screen,
+  // we perform additional initialization after the user is logged in but
+  // before the session has been started.
   // Fires NOTIFICATION_SESSION_STARTED.
   virtual void SessionStarted() = 0;