chromeos: Remove the last IME methods from ash::SystemTrayDelegate

ash/system/tray/system_tray_delegate.h

 // Copyright (c) 2012 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_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
-#include <string>
-#include <vector>
-
 #include "ash/ash_export.h"
 #include "base/i18n/time_formatting.h"
 #include "base/strings/string16.h"
 
 namespace base {
 class TimeDelta;
 class TimeTicks;
 }
 
 namespace ash {
-struct IMEInfo;
-struct IMEPropertyInfo;
-
-using IMEInfoList = std::vector<IMEInfo>;
-using IMEPropertyInfoList = std::vector<IMEPropertyInfo>;
 
 class NetworkingConfigDelegate;
 
 // SystemTrayDelegate is intended for delegating tasks in the System Tray to the
 // application (e.g. Chrome). These tasks should be limited to application
 // (browser) specific tasks. For non application specific tasks, where possible,
 // components/, chromeos/, device/, etc., code should be used directly.
 //
 // DEPRECATED: This class is being replaced with SystemTrayController and
 // SessionController to support mash/mustash. Add new code to those classes.
 class ASH_EXPORT SystemTrayDelegate {
  public:
   SystemTrayDelegate();
   virtual ~SystemTrayDelegate();
 
   // Called after SystemTray has been instantiated.
   virtual void Initialize();
 
   // Shows login UI to add other users to this session.
   virtual void ShowUserLogin();
 
-  // Returns the currently selected IME.
-  virtual void GetCurrentIME(IMEInfo* info);
-
-  // Returns a list of availble IMEs.
-  virtual void GetAvailableIMEList(IMEInfoList* list);
-
-  // Returns a list of properties for the currently selected IME.
-  virtual void GetCurrentIMEProperties(IMEPropertyInfoList* list);
-
   // Returns NetworkingConfigDelegate. May return nullptr.
   virtual NetworkingConfigDelegate* GetNetworkingConfigDelegate() const;
 
   // Retrieves the session start time. Returns |false| if the time is not set.
   virtual bool GetSessionStartTime(base::TimeTicks* session_start_time);
 
   // Retrieves the session length limit. Returns |false| if no limit is set.
   virtual bool GetSessionLengthLimit(base::TimeDelta* session_length_limit);
 
   // The active user has been changed. This will be called when the UI is ready
   // to be switched to the new user.
   // Note: This will happen after SessionObserver::ActiveUserChanged fires.
   virtual void ActiveUserWasChanged();
 
   // Returns true when the Search key is configured to be treated as Caps Lock.
   virtual bool IsSearchKeyMappedToCapsLock();
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_