Implement auto-login for ARC kiosk.

chrome/browser/chromeos/login/existing_user_controller.h

Index: chrome/browser/chromeos/login/existing_user_controller.h
diff --git a/chrome/browser/chromeos/login/existing_user_controller.h b/chrome/browser/chromeos/login/existing_user_controller.h
index e1bc66c7a5ec50e8ad8816de9d157a43b8b72a43..9eda834821f8b4793d725cd5cecaa0308c838c55 100644
--- a/chrome/browser/chromeos/login/existing_user_controller.h
+++ b/chrome/browser/chromeos/login/existing_user_controller.h
@@ -18,6 +18,7 @@
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
+#include "chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_manager.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
 #include "chrome/browser/chromeos/login/signin/token_handle_util.h"
@@ -55,10 +56,12 @@ class NetworkStateHelper;
 // all login UI implementation.
 // ExistingUserController maintains it's own life cycle and deletes itself when
 // the user logs in (or chooses to see other settings).
-class ExistingUserController : public LoginDisplay::Delegate,
-                               public content::NotificationObserver,
-                               public LoginPerformer::Delegate,
-                               public UserSessionManagerDelegate {
+class ExistingUserController
+    : public LoginDisplay::Delegate,
+      public content::NotificationObserver,
+      public LoginPerformer::Delegate,
+      public UserSessionManagerDelegate,
+      public ArcKioskAppManager::ArcKioskAppManagerObserver {
  public:
   // All UI initialization is deferred till Init() call.
   explicit ExistingUserController(LoginDisplayHost* host);
@@ -72,11 +75,11 @@ class ExistingUserController : public LoginDisplay::Delegate,
   // Creates and shows login UI for known users.
   void Init(const user_manager::UserList& users);
 
-  // Start the public session auto-login timer.
-  void StartPublicSessionAutoLoginTimer();
+  // Start the auto-login timer.
+  void StartAutoLoginTimer();
 
-  // Stop the public session auto-login timer when a login attempt begins.
-  void StopPublicSessionAutoLoginTimer();
+  // Stop the auto-login timer when a login attempt begins.
+  void StopAutoLoginTimer();
 
   // LoginDisplay::Delegate: implementation
   void CancelPasswordChangedFlow() override;
@@ -103,6 +106,9 @@ class ExistingUserController : public LoginDisplay::Delegate,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
+  // ArcKioskAppManager::ArcKioskAppManagerObserver overrides.
+  void OnArcKioskAppsChanged() override;
+
   // Set a delegate that we will pass AuthStatusConsumer events to.
   // Used for testing.
   void set_login_status_consumer(AuthStatusConsumer* consumer) {
@@ -138,12 +144,14 @@ class ExistingUserController : public LoginDisplay::Delegate,
   void LoginAsPublicSession(const UserContext& user_context);
   void LoginAsKioskApp(const std::string& app_id, bool diagnostic_mode);
   void LoginAsArcKioskApp(const AccountId& account_id);
-
-  // Retrieve public session auto-login policy and update the timer.
-  void ConfigurePublicSessionAutoLogin();
+  // Retrieve public session and ARC kiosk auto-login policy and update the
+  // timer.
+  void ConfigureAutoLogin();
 
   // Trigger public session auto-login.
   void OnPublicSessionAutoLoginTimerFire();
+  // Trigger ARC kiosk auto-login.
+  void OnArcKioskAutoLoginTimerFire();
 
   // LoginPerformer::Delegate implementation:
   void OnAuthFailure(const AuthFailure& error) override;
@@ -255,12 +263,15 @@ class ExistingUserController : public LoginDisplay::Delegate,
   // Public session auto-login timer.
   std::unique_ptr<base::OneShotTimer> auto_login_timer_;
 
-  // Public session auto-login timeout, in milliseconds.
-  int public_session_auto_login_delay_;
+  // Auto-login timeout, in milliseconds.
+  int auto_login_delay_;
 
   // AccountId for public session auto-login.
   AccountId public_session_auto_login_account_id_ = EmptyAccountId();
 
+  // AccountId for ARC kiosk auto-login.
+  AccountId arc_kiosk_auto_login_account_id_ = EmptyAccountId();
+
   // Used to execute login operations.
   std::unique_ptr<LoginPerformer> login_performer_;