chromeos: Remove old status-area related code.

chrome/browser/ui/views/ash/status_area_host_aura.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_UI_VIEWS_ASH_STATUS_AREA_HOST_AURA_H_
-#define CHROME_BROWSER_UI_VIEWS_ASH_STATUS_AREA_HOST_AURA_H_
-#pragma once
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/chromeos/status/status_area_button.h"
-#include "chrome/browser/ui/browser_list.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-
-#if defined(OS_CHROMEOS)
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/chromeos/login/login_html_dialog.h"
-#endif
-
-class ClockUpdater;
-class StatusAreaView;
-
-namespace views {
-class Views;
-class Widget;
-}
-
-class StatusAreaHostAura : public StatusAreaButton::Delegate,
-                           public BrowserList::Observer,
-                           public content::NotificationObserver {
- public:
-  StatusAreaHostAura();
-  virtual ~StatusAreaHostAura();
-
-  // Returns the status area view.
-  StatusAreaView* GetStatusArea();
-
-  // Instantiates and sets |status_area_view_|, and sets it as the contents of
-  // a new views::Widget |status_area_widget_| which is returned.
-  // The caller is expected to take ownership of |status_area_widget_|.
-  views::Widget* CreateStatusArea();
-
-  // Adds the buttons to the status area. This is called separately, after
-  // the profile has been initialized.
-  void AddButtons();
-
-  // StatusAreaButton::Delegate implementation.
-  virtual bool ShouldExecuteStatusAreaCommand(
-      const views::View* button_view, int command_id) const OVERRIDE;
-  virtual void ExecuteStatusAreaCommand(
-      const views::View* button_view, int command_id) OVERRIDE;
-  virtual StatusAreaButton::TextStyle GetStatusAreaTextStyle() const OVERRIDE;
-  virtual void ButtonVisibilityChanged(views::View* button_view) OVERRIDE;
-
-  // BrowserList::Observer implementation.
-  virtual void OnBrowserAdded(const Browser* browser) OVERRIDE {}
-  virtual void OnBrowserRemoved(const Browser* browser) OVERRIDE {}
-  virtual void OnBrowserSetLastActive(const Browser* browser) OVERRIDE;
-
-  // content::NotificationObserver implementation.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
- private:
-  // Is either the login or lock screen currently displayed?
-  bool IsLoginOrLockScreenDisplayed() const;
-
-  // Triggers an update of the status area text style and position.
-  void UpdateAppearance();
-
-  // Owned by caller of CreateStatusArea().
-  views::Widget* status_area_widget_;
-  // Owned by status_area_widget_.
-  StatusAreaView* status_area_view_;
-
-#if defined(OS_CHROMEOS)
-  scoped_ptr<ClockUpdater> clock_updater_;
-#endif
-
-  content::NotificationRegistrar registrar_;
-
-  DISALLOW_COPY_AND_ASSIGN(StatusAreaHostAura);
-};
-
-#endif  // CHROME_BROWSER_UI_VIEWS_ASH_STATUS_AREA_HOST_AURA_H_