Always load signin profile on Chrome OS startup.

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

 // Copyright (c) 2013 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/chrome_browser_main_chromeos.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/ash_switches.h"
@@ skipping 514 matching lines @@
   user_manager::User* const user =
       ProfileHelper::Get()->GetUserByProfile(profile);
   UserSessionManager::GetInstance()->RespectLocalePreference(
       profile, user, callback);
 }
 
 void ChromeBrowserMainPartsChromeos::PostProfileInit() {
   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
   // -- just after CreateProfile().
 
+  // Force loading of signin profile if it was not loaded before. It is possible
+  // when we are restoring session or skipping login screen for some other
+  // reason.
+  if (!chromeos::ProfileHelper::IsSigninProfile(profile()))
+    chromeos::ProfileHelper::GetSigninProfile();
+
   BootTimesRecorder::Get()->OnChromeProcessStart();
 
   // Initialize the network portal detector for Chrome OS. The network
   // portal detector starts to listen for notifications from
   // NetworkStateHandler and initiates captive portal detection for
   // active networks. Should be called before call to CreateSessionManager,
   // because it depends on NetworkPortalDetector.
   NetworkPortalDetectorImpl::Initialize(
       g_browser_process->system_request_context());
   {
@@ skipping 222 matching lines @@
   // Destroy DBus services immediately after threads are stopped.
   dbus_services_.reset();
 
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
 
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 }
 
 }  //  namespace chromeos