Add LoginState class to src/chromeos/login

chrome/browser/chromeos/status/data_promo_notification.cc

Index: chrome/browser/chromeos/status/data_promo_notification.cc
diff --git a/chrome/browser/chromeos/status/data_promo_notification.cc b/chrome/browser/chromeos/status/data_promo_notification.cc
index edda26f8f81a90787f36f607f63cc7d7a87c5767..bc71a227d5a862d698e8e65381e58e1718151313 100644
--- a/chrome/browser/chromeos/status/data_promo_notification.cc
+++ b/chrome/browser/chromeos/status/data_promo_notification.cc
@@ -16,13 +16,13 @@
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/cros/network_library.h"
 #include "chrome/browser/chromeos/login/helper.h"
-#include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/mobile_config.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/common/pref_names.h"
+#include "chromeos/login/login_state.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -140,8 +140,8 @@ void DataPromoNotification::ShowOptionalMobileDataPromoNotification(
   // Display one-time notification for non-Guest users on first use
   // of Mobile Data connection or if there's a carrier deal defined
   // show that even if user has already seen generic promo.
-  if (UserManager::Get()->IsUserLoggedIn() &&
-      !UserManager::Get()->IsLoggedInAsGuest() &&
+  if (LoginState::Get()->IsUserLoggedIn() &&
+      LoginState::Get()->GetLoginState() != LoginState::LOGGED_IN_GUEST &&

[xiyuan, 2013/04/04 21:24:54]

Out of curiosity and out of the scope of the CL. Should we only offer the data
promo only to a normal user? It does not make much sense for public account,
retail mode and kiosk app robot.

[stevenjb, 2013/04/04 21:35:47]

Good point, I think it can/should be safely fixed here. Done.

       check_for_promo_ &&
       cros->cellular_connected() && !cros->ethernet_connected() &&
       !cros->wifi_connected() && !cros->wimax_connected()) {