Fix more {virtual,override,final} build failures for CrOS build.

ui/base/ime/chromeos/ime_keyboard_ozone.h

 // Copyright 2014 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 UI_BASE_IME_CHROMEOS_IME_KEYBOARD_OZONE_H_
 #define UI_BASE_IME_CHROMEOS_IME_KEYBOARD_OZONE_H_
 
 #include "ui/base/ime/chromeos/ime_keyboard.h"
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "ui/base/ui_base_export.h"
 
 namespace ui {
 class InputController;
 }
 
 namespace chromeos {
 namespace input_method {
 
 class UI_BASE_EXPORT ImeKeyboardOzone : public ImeKeyboard {
  public:
   ImeKeyboardOzone(ui::InputController* controller);
-  virtual ~ImeKeyboardOzone();
+  ~ImeKeyboardOzone() override;
 
-  virtual bool SetCurrentKeyboardLayoutByName(const std::string& layout_name)
-      override;
-  virtual bool SetAutoRepeatRate(const AutoRepeatRate& rate) override;
-  virtual bool SetAutoRepeatEnabled(bool enabled) override;
-  virtual bool GetAutoRepeatEnabled() override;
-  virtual bool ReapplyCurrentKeyboardLayout() override;
-  virtual void ReapplyCurrentModifierLockStatus() override;
-  virtual void DisableNumLock() override;
-  virtual void SetCapsLockEnabled(bool enable_caps_lock) override;
-  virtual bool CapsLockIsEnabled() override;
+  bool SetCurrentKeyboardLayoutByName(const std::string& layout_name) override;
+  bool SetAutoRepeatRate(const AutoRepeatRate& rate) override;
+  bool SetAutoRepeatEnabled(bool enabled) override;
+  bool GetAutoRepeatEnabled() override;
+  bool ReapplyCurrentKeyboardLayout() override;
+  void ReapplyCurrentModifierLockStatus() override;
+  void DisableNumLock() override;
+  void SetCapsLockEnabled(bool enable_caps_lock) override;
+  bool CapsLockIsEnabled() override;
 
  private:
   ui::InputController* input_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(ImeKeyboardOzone);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // UI_BASE_IME_CHROMEOS_IME_KEYBOARD_OZONE_H_