It is time.

ui/base/ime/text_input_focus_manager.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_TEXT_INPUT_FOCUS_MANAGER_H_
-#define UI_BASE_IME_TEXT_INPUT_FOCUS_MANAGER_H_
-
-#include "base/macros.h"
-#include "base/threading/thread_checker.h"
-#include "ui/base/ui_base_export.h"
-
-template <typename T> struct DefaultSingletonTraits;
-
-namespace ui {
-
-class TextInputClient;
-
-// Manages the focused TextInputClient across windows and their contents.
-class UI_BASE_EXPORT TextInputFocusManager {
- public:
-  static TextInputFocusManager* GetInstance();
-
-  // Returns the currently focused text input client or NULL.
-  TextInputClient* GetFocusedTextInputClient();
-
-  // Changes the text input focus to |text_input_client|.
-  void FocusTextInputClient(TextInputClient* text_input_client);
-
-  // Removes the text input focus from |text_input_client|.  If
-  // |text_input_client| was not focused, does nothing.
-  void BlurTextInputClient(TextInputClient* text_input_client);
-
- private:
-  friend struct DefaultSingletonTraits<TextInputFocusManager>;
-
-  TextInputFocusManager();
-  ~TextInputFocusManager();
-
-  TextInputClient* focused_text_input_client_;
-  base::ThreadChecker thread_checker_;
-
-  DISALLOW_COPY_AND_ASSIGN(TextInputFocusManager);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_IME_TEXT_INPUT_FOCUS_MANAGER_H_