Remove Old ChromeOS Offline Error Page

chrome/browser/chromeos/offline/offline_load_page.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_OFFLINE_OFFLINE_LOAD_PAGE_H_
-#define CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "content/public/browser/interstitial_page_delegate.h"
-#include "net/base/network_change_notifier.h"
-#include "url/gurl.h"
-
-namespace base {
-class DictionaryValue;
-}
-
-namespace content {
-class InterstitialPage;
-class WebContents;
-}
-
-namespace extensions {
-class Extension;
-}
-
-namespace chromeos {
-
-// OfflineLoadPage class shows the interstitial page that is shown
-// when no network is available and hides when some network (either
-// one of wifi, 3g or ethernet) becomes available.
-// It deletes itself when the interstitial page is closed.
-class OfflineLoadPage
-    : public content::InterstitialPageDelegate,
-      public net::NetworkChangeNotifier::ConnectionTypeObserver {
- public:
-  // Passed a boolean indicating whether or not it is OK to proceed with the
-  // page load.
-  typedef base::Callback<void(bool /*proceed*/)> CompletionCallback;
-
-  // Create a offline load page for the |web_contents|.  The callback will be
-  // run on the IO thread.
-  OfflineLoadPage(content::WebContents* web_contents, const GURL& url,
-                  const CompletionCallback& callback);
-
-  void Show();
-
- protected:
-  ~OfflineLoadPage() override;
-
-  // Overridden by tests.
-  virtual void NotifyBlockingPageComplete(bool proceed);
-
- private:
-  friend class TestOfflineLoadPage;
-
-  // InterstitialPageDelegate implementation.
-  std::string GetHTMLContents() override;
-  void CommandReceived(const std::string& command) override;
-  void OverrideRendererPrefs(content::RendererPreferences* prefs) override;
-  void OnProceed() override;
-  void OnDontProceed() override;
-
-  // net::NetworkChangeNotifier::ConnectionTypeObserver overrides.
-  void OnConnectionTypeChanged(
-      net::NetworkChangeNotifier::ConnectionType type) override;
-
-  CompletionCallback callback_;
-
-  // True if the proceed is chosen.
-  bool proceeded_;
-
-  content::WebContents* web_contents_;
-  GURL url_;
-  content::InterstitialPage* interstitial_page_;  // Owns us.
-
-  DISALLOW_COPY_AND_ASSIGN(OfflineLoadPage);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_OFFLINE_OFFLINE_LOAD_PAGE_H_