arc: Add splash screen for ARC++ Kiosk startup

chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h

Index: chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h
diff --git a/chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h b/chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h
index 384505b90e5f35ba83a0a2f37183cfe2fa200073..cc90881e29e9f4141320fb14941a4ca37f02af98 100644
--- a/chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h
+++ b/chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h
@@ -31,11 +31,23 @@ class ArcKioskAppService
     : public KeyedService,
       public ArcAppListPrefs::Observer,
       public ArcKioskAppManager::ArcKioskAppManagerObserver,
-      public arc::ArcKioskBridge::Delegate {
+      public arc::ArcKioskBridge::Delegate,
+      public ArcKioskAppLauncher::Delegate {
  public:
+  class Delegate {
+   public:
+    virtual void OnAppStarted() = 0;
+    virtual void OnAppWindowLaunched() = 0;
+
+   protected:
+    virtual ~Delegate() {}

[Luis Héctor Chávez, 2017/01/24 18:40:24]

nit: = default

[Sergey Poromov, 2017/01/25 14:29:21]

Done.

+  };
+
   static ArcKioskAppService* Create(Profile* profile);
   static ArcKioskAppService* Get(content::BrowserContext* context);
 
+  void SetDelegate(Delegate* delegate);
+
   // KeyedService overrides
   void Shutdown() override;
 
@@ -57,6 +69,9 @@ class ArcKioskAppService
   void OnMaintenanceSessionCreated() override;
   void OnMaintenanceSessionFinished() override;
 
+  // ArcKioskAppLauncher::Delegate overrides
+  void OnAppWindowLaunched() override;
+
  private:
   explicit ArcKioskAppService(Profile* profile);
   ~ArcKioskAppService() override;
@@ -74,6 +89,7 @@ class ArcKioskAppService
   std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
   // Keeps track whether the app is already launched
   std::unique_ptr<ArcKioskAppLauncher> app_launcher_;
+  Delegate* delegate_ = nullptr;

[Luis Héctor Chávez, 2017/01/24 18:40:24]

Please note who owns this and its lifetime.

[Sergey Poromov, 2017/01/25 14:29:21]

Done.

 
   DISALLOW_COPY_AND_ASSIGN(ArcKioskAppService);
 };