kiosk: Network connectivity test during launch.

chrome/browser/chromeos/login/screens/app_launch_splash_screen_actor.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_SCREENS_APP_LAUNCH_SPLASH_SCREEN_ACTOR_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_APP_LAUNCH_SPLASH_SCREEN_ACTOR_H_
 
 #include "base/strings/string16.h"
 
 namespace chromeos {
 
 // Interface for UI implemenations of the ApplaunchSplashScreen.
 class AppLaunchSplashScreenActor {
  public:
   enum AppLaunchState {
     APP_LAUNCH_STATE_LOADING_AUTH_FILE,
     APP_LAUNCH_STATE_LOADING_TOKEN_SERVICE,
     APP_LAUNCH_STATE_PREPARING_NETWORK,
     APP_LAUNCH_STATE_INSTALLING_APPLICATION,
     APP_LAUNCH_STATE_WAITING_APP_WINDOW,
     APP_LAUNCH_STATE_NETWORK_WAIT_TIMEOUT,
   };
 
   class Delegate {
    public:
+    // Invoked when the configure network control is clicked.
     virtual void OnConfigureNetwork() = 0;
+
+    // Invoked when the app launch bailout shortcut key is pressed.
     virtual void OnCancelAppLaunch() = 0;
 
+    // Invoked when network state is changed. |online| is true if the device
+    // is connected to the Internet.
+    virtual void OnNetworkStateChanged(bool online) = 0;
+
    protected:
     virtual ~Delegate() {}
   };
 
   virtual ~AppLaunchSplashScreenActor() {}
 
   // Sets screen this actor belongs to.
   virtual void SetDelegate(Delegate* screen) = 0;
 
   // Prepare the contents to showing.
   virtual void PrepareToShow() = 0;
 
   // Shows the contents of the screen.
   virtual void Show(const std::string& app_id) = 0;
 
   // Hides the contents of the screen.
   virtual void Hide() = 0;
 
   // Set the current app launch state.
   virtual void UpdateAppLaunchState(AppLaunchState state) = 0;
 
-  // Sets whether continue control is enabled.
+  // Sets whether configure network control is visible.
   virtual void ToggleNetworkConfig(bool visible) = 0;
+
+  // Shows the network error and configure UI.
+  virtual void ShowNetworkConfigureUI() = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_APP_LAUNCH_SPLASH_SCREEN_ACTOR_H_