[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 00dc54498d5ca3153425df96b364535303e73eaf..ba120e722f0f6bbabc8926a7ed7626dd7ab756c2 100644
--- a/ash/shell_delegate.h
+++ b/ash/shell_delegate.h
@@ -60,7 +60,7 @@ 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;
@@ -71,6 +71,9 @@ 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;