[cros] Initialize OOBE in parallel when boot animation is disabled.

chrome/browser/ui/ash/chrome_shell_delegate.cc

 // Copyright (c) 2012 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/ui/ash/chrome_shell_delegate.h"
 
 #include "ash/launcher/launcher_types.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/wm/window_util.h"
 #include "base/command_line.h"
@@ skipping 90 matching lines @@
     return true;
   }
 
   return chromeos::UserManager::Get()->IsUserLoggedIn();
 #else
   return true;
 #endif
 }
 
   // Returns true if we're logged in and browser has been started
-bool ChromeShellDelegate::IsSessionStarted() {
+bool ChromeShellDelegate::IsSessionStarted() const {
 #if defined(OS_CHROMEOS)
   return chromeos::UserManager::Get()->IsSessionStarted();
 #else
   return true;
 #endif
 }
 
 void ChromeShellDelegate::LockScreen() {
 #if defined(OS_CHROMEOS)
   if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kGuestSession) &&
       !chromeos::KioskModeSettings::Get()->IsKioskModeEnabled()) {
     chromeos::DBusThreadManager::Get()->GetSessionManagerClient()->
         RequestLockScreen();
   }
 #endif
 }
 
+bool ChromeShellDelegate::IsStatusAreaInitiallyVisible() const {
+#if defined(OS_CHROMEOS)
+  // Login screen manages status area visibility by itself.
+  return IsSessionStarted();
+#else
+  return true;
+#endif
+}
+
 void ChromeShellDelegate::UnlockScreen() {
   // This is used only for testing thus far.
   NOTIMPLEMENTED();
 }
 
 bool ChromeShellDelegate::IsScreenLocked() const {
 #if defined(OS_CHROMEOS)
   if (!chromeos::ScreenLocker::default_screen_locker())
     return false;
   return chromeos::ScreenLocker::default_screen_locker()->locked();
@@ skipping 270 matching lines @@
       ash::Shell::GetInstance()->ShowLauncher();
       break;
     default:
       NOTREACHED() << "Unexpected notification " << type;
   }
 #else
   // MSVC++ warns about switch statements without any cases.
   NOTREACHED() << "Unexpected notification " << type;
 #endif
 }