[cros, Aura] Fix login screen crash on boot.

chrome/browser/chrome_browser_main.cc

 // Copyright (c) 2011 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/chrome_browser_main.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1556 matching lines @@
   // Pass the TokenService pointer to the policy connector so user policy can
   // grab a token and register with the policy server.
   // TODO(mnissler): Remove once OAuth is the only authentication mechanism.
   if (parsed_command_line().HasSwitch(switches::kLoginUser) &&
       !parsed_command_line().HasSwitch(switches::kLoginPassword)) {
     g_browser_process->browser_policy_connector()->SetUserPolicyTokenService(
         profile_->GetTokenService());
   }
 #endif
 
-  // Tests should be able to tune login manager before showing it.
-  // Thus only show login manager in normal (non-testing) mode.
-  if (!parameters().ui_task)
-    OptionallyRunChromeOSLoginManager(parsed_command_line(), profile_);
-
 #if !defined(OS_MACOSX)
   // Importing other browser settings is done in a browser-like process
   // that exits when this task has finished.
   // TODO(port): Port the Mac's IPC-based implementation to other platforms to
   //             replace this implementation. http://crbug.com/22142
   if (parsed_command_line().HasSwitch(switches::kImport) ||
       parsed_command_line().HasSwitch(switches::kImportFromFile)) {
     return FirstRun::ImportNow(profile_, parsed_command_line());
   }
 #endif
@@ skipping 261 matching lines @@
 // Called from MainMessageLoopRun().
 void ChromeBrowserMainParts::StartBrowserOrUITask() {
   // Still initializing, so need to allow IO.
   base::ThreadRestrictions::ScopedAllowIO allow_io;
 
   // Set the notification UI manager after any desktop initialization in
   // PreMainMessageLoopRun() is complete, and before starting the browser.
   DesktopNotificationServiceFactory::GetForProfile(profile_)->SetUIManager(
       g_browser_process->notification_ui_manager());
 
+  // Tests should be able to tune login manager before showing it.
+  // Thus only show login manager in normal (non-testing) mode.
+  if (!parameters().ui_task)
+    OptionallyRunChromeOSLoginManager(parsed_command_line(), profile_);
+
   if (parameters().ui_task) {
     // We are in test mode. Run one task and enter the main message loop.
 #if defined(OS_MACOSX)
     if (parameters().autorelease_pool)
       parameters().autorelease_pool->Recycle();
 #endif
     parameters().ui_task->Run();
     delete parameters().ui_task;
     run_message_loop_ = false;
   } else {
@@ skipping 211 matching lines @@
   if (env->GetVar(chrome::kPreReadEnvironmentVariable, &pre_read) &&
       (pre_read == "0" || pre_read == "1")) {
     std::string uma_name(name);
     uma_name += "_PreRead";
     uma_name += pre_read == "1" ? "Enabled" : "Disabled";
     AddPreReadHistogramTime(uma_name.c_str(), time);
   }
 #endif
 #endif
 }