Cleanup: remove unused internet and system pages for chrome os options.

chrome/browser/chromeos/options/internet_page_view.h

-// Copyright (c) 2006-2008 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_OPTIONS_INTERNET_PAGE_VIEW_H_
-#define CHROME_BROWSER_CHROMEOS_OPTIONS_INTERNET_PAGE_VIEW_H_
-#pragma once
-
-#include "chrome/browser/chromeos/cros/network_library.h"
-#include "chrome/browser/chromeos/options/settings_page_view.h"
-
-namespace views {
-class ScrollView;
-}  // namespace views
-
-namespace chromeos {
-
-class InternetPageContentView;
-
-// Internet settings page for Chrome OS
-class InternetPageView : public SettingsPageView,
-                         public NetworkLibrary::NetworkManagerObserver {
- public:
-  explicit InternetPageView(Profile* profile);
-  virtual ~InternetPageView();
-
-  // NetworkLibrary::NetworkManagerObserver implementation.
-  virtual void OnNetworkManagerChanged(NetworkLibrary* obj);
-
-  // views::View overrides:
-  virtual void Layout();
-
- protected:
-  // SettingsPageView implementation:
-  virtual void InitControlLayout();
-
- private:
-  // The contents of the internet page view.
-  InternetPageContentView* contents_view_;
-
-  // The scroll view that contains the advanced options.
-  views::ScrollView* scroll_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(InternetPageView);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_OPTIONS_INTERNET_PAGE_VIEW_H_