kiosk: Network connectivity test during launch.

chrome/browser/chromeos/login/test/oobe_screen_waiter.h

Index: chrome/browser/chromeos/login/test/oobe_screen_waiter.h
diff --git a/chrome/browser/chromeos/login/test/oobe_screen_waiter.h b/chrome/browser/chromeos/login/test/oobe_screen_waiter.h
index 4704f37641d643b184987058ac5ea9abfc261a75..8df9b8b232e746f7e4c714e074f8c70f014016e7 100644
--- a/chrome/browser/chromeos/login/test/oobe_screen_waiter.h
+++ b/chrome/browser/chromeos/login/test/oobe_screen_waiter.h
@@ -21,8 +21,14 @@ class OobeScreenWaiter : public OobeUI::Observer {
   explicit OobeScreenWaiter(OobeDisplay::Screen expected_screen);
   virtual ~OobeScreenWaiter();
 
+  // Run message loop to wait for the expected_screen.
   void Wait();
 
+  // Similar to Wait() but does not assert the current screen is
+  // expected_screen on exit. Use this when there are multiple screen changes
+  // during the wait and the screen to be waited is not the final one.
+  void WaitNoAssertCurrentScreen();
+
   // OobeUI::Observer implementation:
   virtual void OnCurrentScreenChanged(
         OobeDisplay::Screen current_screen,