Move demo mode preference registration.

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index a1951cc31b2683112b3a5e5e4428567519a14382..723b841b1ea4a67114ef6d034d2858d5bf51efc1 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -172,8 +172,8 @@
 #include "chrome/browser/extensions/extension_assets_manager_chromeos.h"
 #include "chrome/browser/metrics/chromeos_metrics_provider.h"
 #include "chrome/browser/ui/webui/chromeos/charger_replacement_handler.h"
+#include "chrome/browser/ui/webui/chromeos/login/demo_mode_detector.h"
 #include "chrome/browser/ui/webui/chromeos/login/hid_detection_screen_handler.h"
-#include "chrome/browser/ui/webui/chromeos/login/network_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/reset_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
 #include "components/invalidation/invalidator_storage.h"
@@ -305,7 +305,7 @@ void RegisterLocalState(PrefRegistrySimple* registry) {
   chromeos::KioskAppManager::RegisterPrefs(registry);
   chromeos::MultiProfileUserController::RegisterPrefs(registry);
   chromeos::HIDDetectionScreenHandler::RegisterPrefs(registry);
-  chromeos::NetworkScreenHandler::RegisterPrefs(registry);
+  chromeos::DemoModeDetector::RegisterPrefs(registry);
   chromeos::Preferences::RegisterPrefs(registry);
   chromeos::proxy_config::RegisterPrefs(registry);
   chromeos::RegisterDisplayLocalStatePrefs(registry);