Save user selected wallpaper information to local state.

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 babbefe42fd27e7a62d612996888acc9c552eb8e..02f80084e3ae6465475a45341326bc27d43e33b0 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -94,6 +94,7 @@
 #include "chrome/browser/chromeos/customization_document.h"
 #include "chrome/browser/chromeos/login/signed_settings_cache.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
+#include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/chromeos/preferences.h"
 #include "chrome/browser/chromeos/proxy_config_service_impl.h"
@@ -179,6 +180,7 @@ void RegisterLocalState(PrefService* local_state) {
   chromeos::UserManager::RegisterPrefs(local_state);
   chromeos::ServicesCustomizationDocument::RegisterPrefs(local_state);
   chromeos::signed_settings_cache::RegisterPrefs(local_state);
+  chromeos::WallpaperManager::RegisterPrefs(local_state);
   chromeos::WizardController::RegisterPrefs(local_state);
   policy::AutoEnrollmentClient::RegisterPrefs(local_state);
   policy::DeviceStatusCollector::RegisterPrefs(local_state);