Revert of Add network throttling as an enterprise policy

chrome/browser/chromeos/chrome_browser_main_chromeos.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_CHROME_BROWSER_MAIN_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_CHROME_BROWSER_MAIN_CHROMEOS_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 19 matching lines @@
 class IdleActionWarningObserver;
 class LoginLockStateNotifier;
 class LowDiskNotification;
 class MagnificationManager;
 class PeripheralBatteryObserver;
 class PowerPrefs;
 class RendererFreezer;
 class SessionManagerObserver;
 class SwapMetrics;
 class WakeOnWifiManager;
-class NetworkThrottlingObserver;
 
 namespace default_app_order {
 class ExternalLoader;
 }
 
 namespace internal {
 class DBusServices;
 }
 
 class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
@@ skipping 20 matching lines @@
  private:
   std::unique_ptr<default_app_order::ExternalLoader> app_order_loader_;
   std::unique_ptr<ExtensionVolumeObserver> extension_volume_observer_;
   std::unique_ptr<PeripheralBatteryObserver> peripheral_battery_observer_;
   std::unique_ptr<PowerPrefs> power_prefs_;
   std::unique_ptr<LoginLockStateNotifier> login_lock_state_notifier_;
   std::unique_ptr<IdleActionWarningObserver> idle_action_warning_observer_;
   std::unique_ptr<DataPromoNotification> data_promo_notification_;
   std::unique_ptr<RendererFreezer> renderer_freezer_;
   std::unique_ptr<WakeOnWifiManager> wake_on_wifi_manager_;
-  std::unique_ptr<NetworkThrottlingObserver> network_throttling_observer_;
 
   std::unique_ptr<internal::DBusServices> dbus_services_;
 
   std::unique_ptr<session_manager::SessionManager> session_manager_;
 
   std::unique_ptr<EventRewriterController> keyboard_event_rewriters_;
 
   scoped_refptr<chromeos::ExternalMetrics> external_metrics_;
 
   std::unique_ptr<arc::ArcServiceLauncher> arc_service_launcher_;
 
   std::unique_ptr<LowDiskNotification> low_disk_notification_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsChromeos);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CHROME_BROWSER_MAIN_CHROMEOS_H_