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

chrome/browser/chromeos/login/demo_mode/demo_app_launcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/demo_mode/demo_app_launcher.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "chrome/browser/chromeos/app_mode/app_session_lifetime.h"
@@ skipping 78 matching lines @@
   LOG(WARNING) << "Disabling network before launching demo app..";
   NetworkStateHandler* handler = NetworkHandler::Get()->network_state_handler();
   handler->SetTechnologyEnabled(NetworkTypePattern::NonVirtual(),
                                 false,
                                 chromeos::network_handler::ErrorCallback());
 
   OpenApplication(AppLaunchParams(
       profile, extension, extensions::LAUNCH_CONTAINER_WINDOW, NEW_WINDOW));
   InitAppSession(profile, extension_id);
 
-  UserManager::Get()->SessionStarted();
+  GetUserManager()->SessionStarted();
 
   LoginDisplayHostImpl::default_host()->Finalize();
 }
 
 void DemoAppLauncher::OnProfileLoadFailed(KioskAppLaunchError::Error error) {
   LOG(ERROR) << "Loading the Kiosk Profile failed: " <<
       KioskAppLaunchError::GetErrorMessage(error);
 }
 
 }  // namespace chromeos