ash: Use SessionController instead of SessionStateDelegate

ash/common/session/session_state_delegate.h

Index: ash/common/session/session_state_delegate.h
diff --git a/ash/common/session/session_state_delegate.h b/ash/common/session/session_state_delegate.h
index 166b20ffdc8aeefbb1cd43d0f896521ed830eb6b..f1c232d94be76948239aedceb418b95e21cb5441 100644
--- a/ash/common/session/session_state_delegate.h
+++ b/ash/common/session/session_state_delegate.h
@@ -6,22 +6,13 @@
 #define ASH_COMMON_SESSION_SESSION_STATE_DELEGATE_H_
 
 #include "ash/ash_export.h"
-#include "ash/public/cpp/session_types.h"
-#include "components/session_manager/session_manager_types.h"
-
-class AccountId;
 
 namespace gfx {
 class ImageSkia;
 }
 
-namespace user_manager {
-class UserInfo;
-}
-
 namespace ash {
 
-class SessionStateObserver;
 class WmWindow;
 
 // Delegate for checking and modifying the session state.
@@ -31,73 +22,11 @@ class ASH_EXPORT SessionStateDelegate {
  public:
   virtual ~SessionStateDelegate() {}
 
-  // Returns the maximum possible number of logged in users.
-  virtual int GetMaximumNumberOfLoggedInUsers() const = 0;
-
-  // Returns the number of signed in users. If 0 is returned, there is either
-  // no session in progress or no active user.
-  virtual int NumberOfLoggedInUsers() const = 0;
-
-  // Gets the policy of adding a user session to ash.
-  virtual AddUserSessionPolicy GetAddUserSessionPolicy() 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.
-  virtual bool IsActiveUserSessionStarted() const = 0;
-
-  // Returns true if the screen can be locked.
-  virtual bool CanLockScreen() const = 0;
-
-  // Returns true if the screen is currently locked.
-  virtual bool IsScreenLocked() const = 0;
-
-  // Returns true if the screen should be locked automatically when the screen
-  // is turned off or the system is suspended.
-  virtual bool ShouldLockScreenAutomatically() const = 0;
-
-  // Locks the screen. The locking happens asynchronously.
-  virtual void LockScreen() = 0;
-
-  // Unlocks the screen.
-  virtual void UnlockScreen() = 0;
-
-  // 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.
-  virtual bool IsUserSessionBlocked() const = 0;
-
-  // Returns current session state.
-  virtual session_manager::SessionState GetSessionState() const = 0;
-
-  // Gets the user info for the user with the given |index|. See session_types.h
-  // for a description of UserIndex.
-  // Note that |index| can at maximum be |NumberOfLoggedInUsers() - 1|.
-  virtual const user_manager::UserInfo* GetUserInfo(UserIndex index) const = 0;
-
   // Whether or not the window's title should show the avatar.
   virtual bool ShouldShowAvatar(WmWindow* window) const = 0;
 
   // Returns the avatar image for the specified window.
   virtual gfx::ImageSkia GetAvatarImageForWindow(WmWindow* window) const = 0;
-
-  // Switches to another active user with |account_id|
-  // (if that user has already signed in).
-  virtual void SwitchActiveUser(const AccountId& account_id) = 0;
-
-  // Switches the active user to the next or previous user, with the same
-  // ordering as GetLoggedInUsers.
-  virtual void CycleActiveUser(CycleUserDirection direction) = 0;
-
-  // Returns true if primary user policy does not forbid multiple signin.
-  virtual bool IsMultiProfileAllowedByPrimaryUserPolicy() const = 0;
-
-  // Adds or removes sessions state observer.
-  virtual void AddSessionStateObserver(SessionStateObserver* observer) = 0;
-  virtual void RemoveSessionStateObserver(SessionStateObserver* observer) = 0;
-
-  bool IsInSecondaryLoginScreen() const;
 };
 
 }  // namespace ash