It is time.

ui/base/ime/input_method_observer.h

-// Copyright (c) 2013 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_INPUT_METHOD_OBSERVER_H_
-#define UI_BASE_IME_INPUT_METHOD_OBSERVER_H_
-
-#include "ui/base/ui_base_export.h"
-
-namespace ui {
-
-class InputMethod;
-class TextInputClient;
-
-class UI_BASE_EXPORT InputMethodObserver {
- public:
-  virtual ~InputMethodObserver() {}
-
-  // Called whenever the text input type is changed for the focused client.
-  // Currently only used by the mock input method for testing.
-  virtual void OnTextInputTypeChanged(const TextInputClient* client) = 0;
-
-  // Called when the top-level system window gets keyboard focus. Currently
-  // only used by the mock input method for testing.
-  virtual void OnFocus() = 0;
-
-  // Called when the top-level system window loses keyboard focus. Currently
-  // only used by the mock input method for testing.
-  virtual void OnBlur() = 0;
-
-  // Called whenever the caret bounds is changed for the input client.
-  // Currently only used by the mock input method for testing.
-  virtual void OnCaretBoundsChanged(const TextInputClient* client) = 0;
-
-  // Called when either:
-  //  - the TextInputClient is changed (e.g. by a change of focus)
-  //  - the TextInputType of the TextInputClient changes
-  virtual void OnTextInputStateChanged(const TextInputClient* client) = 0;
-
-  // Called when the observed InputMethod is being destroyed.
-  virtual void OnInputMethodDestroyed(const InputMethod* input_method) = 0;
-
-  // Called when a user gesture should trigger showing the virtual keyboard
-  // or alternate input view (e.g. handwriting palette). Used in ChromeOS.
-  virtual void OnShowImeIfNeeded() = 0;
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_IME_INPUT_METHOD_OBSERVER_H_