chromeos: Remove old status-area related code.

chrome/browser/chromeos/status/input_method_menu_button.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 CHROME_BROWSER_CHROMEOS_STATUS_INPUT_METHOD_MENU_BUTTON_H_
-#define CHROME_BROWSER_CHROMEOS_STATUS_INPUT_METHOD_MENU_BUTTON_H_
-#pragma once
-
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/chromeos/status/input_method_menu.h"
-#include "chrome/browser/chromeos/status/status_area_button.h"
-#include "ui/views/controls/button/menu_button_listener.h"
-
-namespace chromeos {
-
-// A class for the button in the status area which expands the dropdown menu for
-// switching input method and keyboard layout.
-class InputMethodMenuButton : public StatusAreaButton,
-                              public views::MenuButtonListener {
- public:
-  explicit InputMethodMenuButton(StatusAreaButton::Delegate* delegate);
-  virtual ~InputMethodMenuButton();
-
-  // views::View implementation.
-  virtual void OnLocaleChanged() OVERRIDE;
-
-  // views::MenuButtonListener implementation.
-  virtual void OnMenuButtonClicked(views::View* source,
-                                   const gfx::Point& point) OVERRIDE;
-
-  // InputMethodMenu implementation.
-  virtual void UpdateUI(const std::string& input_method_id,
-                        const string16& name,
-                        const string16& tooltip,
-                        size_t num_active_input_methods);
-  virtual bool ShouldSupportConfigUI();
-  virtual void OpenConfigUI();
-
-  // Updates the UI from the current input method.
-  void UpdateUIFromCurrentInputMethod();
-
- private:
-  // Returns true if the Chrome window where the button lives is active. When
-  // Ash is in use, the function always returns true.
-  bool StatusAreaIsVisible();
-
-  scoped_ptr<InputMethodMenu> menu_;
-
-  DISALLOW_COPY_AND_ASSIGN(InputMethodMenuButton);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_STATUS_INPUT_METHOD_MENU_BUTTON_H_