mash: Run pre-unlock animation via SessionController

chrome/browser/ui/ash/session_controller_client.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_ASH_SESSION_CONTROLLER_CLIENT_H_
 #define CHROME_BROWSER_UI_ASH_SESSION_CONTROLLER_CLIENT_H_
 
 #include "ash/public/interfaces/session_controller.mojom.h"
+#include "base/callback_forward.h"
 #include "base/macros.h"
 #include "components/session_manager/core/session_manager_observer.h"
 #include "components/user_manager/user_manager.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
 namespace ash {
 enum class AddUserSessionPolicy;
 }
 
 namespace user_manager {
 class User;
 }
 
 // Updates session state etc to ash via SessionController interface and handles
 // session related calls from ash.
 // TODO(xiyuan): Update when UserSessionStateObserver is gone.
 class SessionControllerClient
     : public ash::mojom::SessionControllerClient,
       public user_manager::UserManager::UserSessionStateObserver,
       public user_manager::UserManager::Observer,
       public session_manager::SessionManagerObserver {
  public:
   SessionControllerClient();
   ~SessionControllerClient() override;
 
+  static SessionControllerClient* Get();
+
+  // Calls ash SessionController to run unlock animation.
+  // |animation_finished_callback| will be invoked when the animation finishes.
+  void RunUnlockAnimation(base::Closure animation_finished_callback);
+
   // ash::mojom::SessionControllerClient:
   void RequestLockScreen() override;
   void SwitchActiveUser(const AccountId& account_id) override;
   void CycleActiveUser(ash::CycleUserDirection direction) override;
 
   // user_manager::UserManager::UserSessionStateObserver:
   void ActiveUserChanged(const user_manager::User* active_user) override;
   void UserAddedToSession(const user_manager::User* added_user) override;
   void UserChangedChildStatus(user_manager::User* user) override;
 
@@ skipping 36 matching lines @@
 
   // Whether the primary user session info is sent to ash.
   bool primary_user_session_sent_ = false;
 
   ash::mojom::SessionInfoPtr last_sent_session_info_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionControllerClient);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_SESSION_CONTROLLER_CLIENT_H_