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

chrome/browser/ui/ash/chrome_shell_delegate.cc

Index: chrome/browser/ui/ash/chrome_shell_delegate.cc
diff --git a/chrome/browser/ui/ash/chrome_shell_delegate.cc b/chrome/browser/ui/ash/chrome_shell_delegate.cc
index a73b806da922b65ec416b27e3f872d313914ffe9..4315a02b3e1510d0e8bd0f055556d9df3092cedb 100644
--- a/chrome/browser/ui/ash/chrome_shell_delegate.cc
+++ b/chrome/browser/ui/ash/chrome_shell_delegate.cc
@@ -104,7 +104,7 @@ bool ChromeShellDelegate::IsUserLoggedIn() {
 }
 
   // 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
@@ -122,6 +122,15 @@ void ChromeShellDelegate::LockScreen() {
 #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();