Add an automatic settings reset banner.

chrome/browser/prefs/chrome_pref_service_factory.h

Index: chrome/browser/prefs/chrome_pref_service_factory.h
diff --git a/chrome/browser/prefs/chrome_pref_service_factory.h b/chrome/browser/prefs/chrome_pref_service_factory.h
index 371e60cadec806f50deb5fa457bcf8b3b919e247..25daac30b1475ef9c0705f3fb1fb012d9e5eb488 100644
--- a/chrome/browser/prefs/chrome_pref_service_factory.h
+++ b/chrome/browser/prefs/chrome_pref_service_factory.h
@@ -24,6 +24,7 @@ class PrefRegistrySyncable;
 class ManagedUserSettingsService;
 class PrefHashStore;
 class PrefRegistry;
+class PrefRegistrySimple;
 class PrefService;
 class PrefServiceSyncable;
 class PrefStore;
@@ -74,6 +75,9 @@ void InitializePrefHashStoreIfRequired(
 // |profile_path|.
 void ResetPrefHashStore(const base::FilePath& profile_path);
 
+// Register local state prefs used by chrome preference system.
+void RegisterPrefs(PrefRegistrySimple* registry);
+
 }  // namespace chrome_prefs
 
 #endif  // CHROME_BROWSER_PREFS_CHROME_PREF_SERVICE_FACTORY_H_