Install and launch kiosk app from cached crx file at start up.

chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.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_UI_WEBUI_EXTENSIONS_CHROMEOS_KIOSK_APPS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_EXTENSIONS_CHROMEOS_KIOSK_APPS_HANDLER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 19 matching lines @@
                          public KioskAppManagerObserver {
  public:
   KioskAppsHandler();
   virtual ~KioskAppsHandler();
 
   void GetLocalizedValues(content::WebUIDataSource* source);
 
   // content::WebUIMessageHandler overrides:
   virtual void RegisterMessages() OVERRIDE;
 
-  // KioskAppPrefsObserver overrides:
+  // KioskAppManagerObserver overrides:
   virtual void OnKioskAppDataChanged(const std::string& app_id) OVERRIDE;
   virtual void OnKioskAppDataLoadFailure(const std::string& app_id) OVERRIDE;
+  virtual void OnKioskExtensionLoadedInCache(
+      const std::string& app_id) OVERRIDE;
+  virtual void OnKioskExtensionDownloadFailed(
+      const std::string& app_id) OVERRIDE;
+
   virtual void OnKioskAppsSettingsChanged() OVERRIDE;
 
  private:
   // Sends all kiosk apps and settings to webui.
   void SendKioskAppSettings();
 
   // JS callbacks.
   void HandleInitializeKioskAppSettings(const base::ListValue* args);
   void HandleGetKioskAppSettings(const base::ListValue* args);
   void HandleAddKioskApp(const base::ListValue* args);
   void HandleRemoveKioskApp(const base::ListValue* args);
   void HandleEnableKioskAutoLaunch(const base::ListValue* args);
   void HandleDisableKioskAutoLaunch(const base::ListValue* args);
   void HandleSetDisableBailoutShortcut(const base::ListValue* args);
 
+  void HandleKioskDataChange(const std::string& app_id);
+  void HandleKioskDataFailure(const std::string& app_id);

[xiyuan, 2014/07/15 02:32:51]

nit: Handlexxx sounds like a JS callback. Let's use different names,
e.g.
HandleKioskDataChange -> UpdateApp
HandleKioskDataFailure -> ShowError

[jennyz, 2014/07/15 16:36:41]

Done.

+
   // Callback for KioskAppManager::GetConsumerKioskModeStatus().
   void OnGetConsumerKioskAutoLaunchStatus(
       chromeos::KioskAppManager::ConsumerKioskAutoLaunchStatus status);
 
   KioskAppManager* kiosk_app_manager_;  // not owned.
   bool initialized_;
   bool is_kiosk_enabled_;
   bool is_auto_launch_enabled_;
   base::WeakPtrFactory<KioskAppsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(KioskAppsHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_EXTENSIONS_CHROMEOS_KIOSK_APPS_HANDLER_H_