arc: Handle ARC events in MD Settings

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

Index: chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h
diff --git a/chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h b/chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h
index 7180bb1760632f49035e2468800eb365ed353f23..62a530c474265d0f1789e36a3fdf942e5b00fdae 100644
--- a/chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h
+++ b/chrome/browser/ui/webui/settings/chromeos/android_apps_handler.h
@@ -10,6 +10,7 @@
 #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"
 
@@ -23,7 +24,8 @@ 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;
@@ -34,11 +36,13 @@ class AndroidAppsHandler : public ::settings::SettingsPageUIHandler,
   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);
@@ -48,6 +52,8 @@ class AndroidAppsHandler : public ::settings::SettingsPageUIHandler,
 
   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_;