Replace chromeos::UserManager::Get() with chromeos::GetUserManager().

chrome/browser/chromeos/app_mode/app_session_lifetime.cc

Index: chrome/browser/chromeos/app_mode/app_session_lifetime.cc
diff --git a/chrome/browser/chromeos/app_mode/app_session_lifetime.cc b/chrome/browser/chromeos/app_mode/app_session_lifetime.cc
index 6fa8455e93cfda2917e21a7dd372a0dfe95c5c94..7666987db9aa679fd7724cdbd9cd2c155bfa7879 100644
--- a/chrome/browser/chromeos/app_mode/app_session_lifetime.cc
+++ b/chrome/browser/chromeos/app_mode/app_session_lifetime.cc
@@ -54,7 +54,7 @@ class AppWindowHandler : public AppWindowRegistry::Observer {
   virtual void OnAppWindowRemoved(apps::AppWindow* app_window) OVERRIDE {
     if (window_registry_->app_windows().empty()) {
       if (DemoAppLauncher::IsDemoAppSession(
-          chromeos::UserManager::Get()->GetActiveUser()->email())) {
+              chromeos::GetUserManager()->GetActiveUser()->email())) {
         // If we were in demo mode, we disabled all our network technologies,
         // re-enable them.
         NetworkStateHandler* handler =
@@ -129,7 +129,7 @@ void InitAppSession(Profile* profile, const std::string& app_id) {
   // For a demo app, we don't need to either setup the update service or
   // the idle app name notification.
   if (DemoAppLauncher::IsDemoAppSession(
-      chromeos::UserManager::Get()->GetActiveUser()->email()))
+          chromeos::GetUserManager()->GetActiveUser()->email()))
     return;
 
   // Set the app_id for the current instance of KioskAppUpdateService.