Sync 3rd party wallpaper app name

chrome/browser/profiles/profile.cc

 // 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.
 
 #include "chrome/browser/profiles/profile.h"
 
 #include <string>
 
 #include "base/prefs/pref_service.h"
 #include "build/build_config.h"
@@ skipping 114 matching lines @@
   // kApplicationLocale only in local state.
   // In the future we may want to maintain kApplicationLocale
   // in user's profile for other platforms as well.
   registry->RegisterStringPref(
       prefs::kApplicationLocale,
       std::string(),
       user_prefs::PrefRegistrySyncable::SYNCABLE_PRIORITY_PREF);
   registry->RegisterStringPref(prefs::kApplicationLocaleBackup, std::string());
   registry->RegisterStringPref(prefs::kApplicationLocaleAccepted,
                                std::string());
-  registry->RegisterStringPref(prefs::kCurrentWallpaperAppName, std::string());
+  registry->RegisterStringPref(prefs::kCurrentWallpaperAppName, std::string(),
+                               user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
 #endif
 
 #if defined(OS_ANDROID)
   registry->RegisterBooleanPref(prefs::kDevToolsRemoteEnabled, false);
 #endif
 
   registry->RegisterBooleanPref(prefs::kDataSaverEnabled, false);
   data_reduction_proxy::RegisterSyncableProfilePrefs(registry);
 
 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS) && !defined(OS_IOS)
@@ skipping 73 matching lines @@
   if (a->IsSameProfile(b))
     return false;
   return a->GetOriginalProfile() < b->GetOriginalProfile();
 }
 
 double Profile::GetDefaultZoomLevelForProfile() {
   return GetDefaultStoragePartition(this)
       ->GetHostZoomMap()
       ->GetDefaultZoomLevel();
 }