Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/session/session_controller.h

Index: ash/session/session_controller.h
diff --git a/ash/session/session_controller.h b/ash/session/session_controller.h
deleted file mode 100644
index 43cca6173c186dab7d3e2178e14fe72872c3f45e..0000000000000000000000000000000000000000
--- a/ash/session/session_controller.h
+++ /dev/null
@@ -1,128 +0,0 @@
-// 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 ASH_SESSION_SESSION_CONTROLLER_H_
-#define ASH_SESSION_SESSION_CONTROLLER_H_
-
-#include <stdint.h>
-
-#include <vector>
-
-#include "ash/ash_export.h"
-#include "ash/public/cpp/session_types.h"
-#include "ash/public/interfaces/session_controller.mojom.h"
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-
-class AccountId;
-
-namespace ash {
-
-class SessionStateObserver;
-
-// Implements mojom::SessionController to cache session related info such as
-// session state, meta data about user sessions to support synchronous
-// queries for ash. It is targeted as a replacement for SessionStateDelegate.
-class ASH_EXPORT SessionController
-    : NON_EXPORTED_BASE(public mojom::SessionController) {
- public:
-  SessionController();
-  ~SessionController() override;
-
-  // Binds the mojom::SessionControllerRequest to this object.
-  void BindRequest(mojom::SessionControllerRequest request);
-
-  // Returns the maximum possible number of logged in users.
-  int GetMaximumNumberOfLoggedInUsers() const;
-
-  // Returns the number of signed in users. If 0 is returned, there is either
-  // no session in progress or no active user.
-  int NumberOfLoggedInUsers() const;
-
-  // Gets the policy of adding a user session to ash.
-  AddUserSessionPolicy GetAddUserPolicy() const;
-
-  // Returns |true| if the session has been fully started for the active user.
-  // When a user becomes active, the profile and browser UI are not immediately
-  // available. Only once this method starts returning |true| is the browser
-  // startup complete and both profile and UI are fully available.
-  bool IsActiveUserSessionStarted() const;
-
-  // Returns true if the screen can be locked.
-  bool CanLockScreen() const;
-
-  // Returns true if the screen is currently locked.
-  bool IsScreenLocked() const;
-
-  // Returns true if the screen should be locked automatically when the screen
-  // is turned off or the system is suspended.
-  bool ShouldLockScreenAutomatically() const;
-
-  // Returns |true| if user session blocked by some overlying UI. It can be
-  // login screen, lock screen or screen for adding users into multi-profile
-  // session.
-  bool IsUserSessionBlocked() const;
-
-  // Gets the ash session state.
-  session_manager::SessionState GetSessionState() const;
-
-  // Gets the user sessions in LRU order with the active session being first.
-  const std::vector<mojom::UserSessionPtr>& GetUserSessions() const;
-
-  // Locks the screen. The locking happens asynchronously.
-  void LockScreen();
-
-  // Switches to another active user with |account_id| (if that user has
-  // already signed in).
-  void SwitchActiveUser(const AccountId& account_id);
-
-  // Switches the active user to the next or previous user, with the same
-  // ordering as user sessions are created.
-  void CycleActiveUser(CycleUserDirection direction);
-
-  void AddSessionStateObserver(SessionStateObserver* observer);
-  void RemoveSessionStateObserver(SessionStateObserver* observer);
-
-  // mojom::SessionController
-  void SetClient(mojom::SessionControllerClientPtr client) override;
-  void SetSessionInfo(mojom::SessionInfoPtr info) override;
-  void UpdateUserSession(mojom::UserSessionPtr user_session) override;
-  void SetUserSessionOrder(
-      const std::vector<uint32_t>& user_session_order) override;
-
- private:
-  void SetSessionState(session_manager::SessionState state);
-  void AddUserSession(mojom::UserSessionPtr user_session);
-
-  // Bindings for mojom::SessionController interface.
-  mojo::BindingSet<mojom::SessionController> bindings_;
-
-  // Client interface to session manager code (chrome).
-  mojom::SessionControllerClientPtr client_;
-
-  // Cached session info.
-  bool can_lock_ = false;
-  bool should_lock_screen_automatically_ = false;
-  AddUserSessionPolicy add_user_session_policy_ = AddUserSessionPolicy::ALLOWED;
-  session_manager::SessionState state_ = session_manager::SessionState::UNKNOWN;
-
-  // Cached user session info sorted by the order from SetUserSessionOrder.
-  // Currently the session manager code (chrome) sets a LRU order with the
-  // active session being the first.
-  std::vector<mojom::UserSessionPtr> user_sessions_;
-
-  // The user session id of the current active user session. User session id
-  // is managed by session manager code, starting at 1. 0u is an invalid id
-  // to detect first active user session.
-  uint32_t active_session_id_ = 0u;
-
-  base::ObserverList<ash::SessionStateObserver> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(SessionController);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SESSION_SESSION_CONTROLLER_H_