arc: Handle ARC events in MD Settings

chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h

 // Copyright 2016 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_SETTINGS_CHROMEOS_ANDROID_APPS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_ANDROID_APPS_HANDLER_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/scoped_observer.h"
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
 #include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
 
 class Profile;
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace chromeos {
 namespace settings {
 
 class AndroidAppsHandler : public ::settings::SettingsPageUIHandler,
-                           public ArcAppListPrefs::Observer {
+                           public ArcAppListPrefs::Observer,
+                           public arc::ArcSessionManager::Observer {
  public:
   explicit AndroidAppsHandler(Profile* profile);
   ~AndroidAppsHandler() override;
 
   // SettingsPageUIHandler
   void RegisterMessages() override;
   void OnJavascriptAllowed() override;
   void OnJavascriptDisallowed() override;
 
   // ArcAppListPrefs::Observer
-  void OnAppReadyChanged(const std::string& app_id, bool ready) override;
   void OnAppRemoved(const std::string& app_id) override;
   void OnAppRegistered(const std::string& app_id,
                        const ArcAppListPrefs::AppInfo& app_info) override;
 
+  // arc::ArcSessionManager::Observer:
+  void OnArcPlayStoreEnabledChanged(bool enabled) override;
+
  private:
   std::unique_ptr<base::DictionaryValue> BuildAndroidAppsInfo();
   void OnAppChanged(const std::string& app_id);
   void HandleRequestAndroidAppsInfo(const base::ListValue* args);
   void SendAndroidAppsInfo();
   void ShowAndroidAppsSettings(const base::ListValue* args);
 
   ScopedObserver<ArcAppListPrefs, ArcAppListPrefs::Observer>
       arc_prefs_observer_;
+  ScopedObserver<arc::ArcSessionManager, arc::ArcSessionManager::Observer>
+      arc_session_manager_observer_;
   Profile* profile_;  // unowned
   base::WeakPtrFactory<AndroidAppsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AndroidAppsHandler);
 };
 
 }  // namespace settings
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SETTINGS_CHROMEOS_ANDROID_APPS_HANDLER_H_