NetworkHandler: Add ui_proxy_config_service

chrome/browser/chromeos/chrome_browser_main_chromeos.h

Index: chrome/browser/chromeos/chrome_browser_main_chromeos.h
diff --git a/chrome/browser/chromeos/chrome_browser_main_chromeos.h b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
index 93a5382a6d05a49ad3cec1149a18cc897e46d373..4832e0910ae4a766f9edbbee07f8bde74d8b9d30 100644
--- a/chrome/browser/chromeos/chrome_browser_main_chromeos.h
+++ b/chrome/browser/chromeos/chrome_browser_main_chromeos.h
@@ -31,6 +31,7 @@ class IdleActionWarningObserver;
 class LoginLockStateNotifier;
 class LowDiskNotification;
 class MagnificationManager;
+class NetworkPrefStateObserver;
 class PeripheralBatteryObserver;
 class PowerPrefs;
 class RendererFreezer;
@@ -77,6 +78,7 @@ class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
   std::unique_ptr<DataPromoNotification> data_promo_notification_;
   std::unique_ptr<RendererFreezer> renderer_freezer_;
   std::unique_ptr<WakeOnWifiManager> wake_on_wifi_manager_;
+  std::unique_ptr<NetworkPrefStateObserver> network_pref_state_observer_;
 
   std::unique_ptr<internal::DBusServices> dbus_services_;