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..c6c85b10d959681d62c5a63e1321a595aec944a9 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;
@@ -69,6 +70,7 @@ class ChromeBrowserMainPartsChromeos : public ChromeBrowserMainPartsLinux {
 
  private:
   std::unique_ptr<default_app_order::ExternalLoader> app_order_loader_;
+  std::unique_ptr<NetworkPrefStateObserver> network_pref_state_observer_;
   std::unique_ptr<ExtensionVolumeObserver> extension_volume_observer_;
   std::unique_ptr<PeripheralBatteryObserver> peripheral_battery_observer_;
   std::unique_ptr<PowerPrefs> power_prefs_;