kiosk: Network connectivity test during launch.

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_TEST_OOBE_SCREEN_WAITER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_TEST_OOBE_SCREEN_WAITER_H_
 
 #include "base/basictypes.h"
 #include "chrome/browser/chromeos/login/oobe_display.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 
 namespace content {
 class MessageLoopRunner;
 }
 
 namespace chromeos {
 
 // A waiter that blocks until the expected oobe screen is reached.
 class OobeScreenWaiter : public OobeUI::Observer {
  public:
   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,
         OobeDisplay::Screen new_screen) OVERRIDE;
 
  private:
   OobeUI* GetOobeUI();
 
   bool waiting_for_screen_;
   OobeDisplay::Screen expected_screen_;
   scoped_refptr<content::MessageLoopRunner> runner_;
 
   DISALLOW_COPY_AND_ASSIGN(OobeScreenWaiter);
 };
 
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_TEST_OOBE_SCREEN_WAITER_H_