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

ash/shell_delegate.h

Index: ash/shell_delegate.h
diff --git a/ash/shell_delegate.h b/ash/shell_delegate.h
index 8029e1b9686ac0581fd26bf3e987d3b88a893a50..a736e553f064675a11acc6a7caf6ba4cea9b5787 100644
--- a/ash/shell_delegate.h
+++ b/ash/shell_delegate.h
@@ -59,7 +59,7 @@ class ASH_EXPORT ShellDelegate {
   virtual bool IsUserLoggedIn() = 0;
 
   // Returns true if we're logged in and browser has been started
-  virtual bool IsSessionStarted() = 0;
+  virtual bool IsSessionStarted() const = 0;
 
   // Invoked when a user locks the screen.
   virtual void LockScreen() = 0;
@@ -70,6 +70,9 @@ class ASH_EXPORT ShellDelegate {
   // Returns true if the screen is currently locked.
   virtual bool IsScreenLocked() const = 0;
 
+  // Returns true if status area should be made initially visible.
+  virtual bool IsStatusAreaInitiallyVisible() const = 0;
+
   // Shuts down the environment.
   virtual void Shutdown() = 0;