Added shortcut for NW config screen in kiosk.

chrome/browser/chromeos/app_mode/startup_app_launcher.h

Index: chrome/browser/chromeos/app_mode/startup_app_launcher.h
diff --git a/chrome/browser/chromeos/app_mode/startup_app_launcher.h b/chrome/browser/chromeos/app_mode/startup_app_launcher.h
index 937afed4ad27da988c9318410913d5557e7c6dd8..e13225abc98c1911a184e4d9bc8ab469c2330d1d 100644
--- a/chrome/browser/chromeos/app_mode/startup_app_launcher.h
+++ b/chrome/browser/chromeos/app_mode/startup_app_launcher.h
@@ -50,6 +50,7 @@ class StartupAppLauncher
     virtual void OnReadyToLaunch() = 0;
     virtual void OnLaunchSucceeded() = 0;
     virtual void OnLaunchFailed(KioskAppLaunchError::Error error) = 0;
+    virtual bool IsShowingNetworkConfigScreen() = 0;
 
    protected:
     virtual ~Delegate() {}
@@ -71,6 +72,9 @@ class StartupAppLauncher
   // Launches the app after the initialization is successful.
   void LaunchApp();
 
+  // Restarts launcher;
+  void RestartLauncher();
+
  private:
   // OAuth parameters from /home/chronos/kiosk_auth file.
   struct KioskOAuthParams {