Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/password_manager/password_store_x.cc

Index: chrome/browser/password_manager/password_store_x.cc
diff --git a/chrome/browser/password_manager/password_store_x.cc b/chrome/browser/password_manager/password_store_x.cc
index eae31616a44b0c54d6231a4037a4594fba51c26c..2e5dc10b2f1eb9ddad34b5192b7a9b7a4283bec0 100644
--- a/chrome/browser/password_manager/password_store_x.cc
+++ b/chrome/browser/password_manager/password_store_x.cc
@@ -270,11 +270,11 @@ ssize_t PasswordStoreX::MigrateLogins() {
 
 #if !defined(OS_MACOSX) && !defined(OS_CHROMEOS) && defined(OS_POSIX)
 // static
-void PasswordStoreX::RegisterUserPrefs(PrefService* prefs) {
+void PasswordStoreX::RegisterUserPrefs(PrefServiceSyncable* prefs) {
   // Normally we should be on the UI thread here, but in tests we might not.
   prefs->RegisterBooleanPref(prefs::kPasswordsUseLocalProfileId,
                              false,  // default: passwords don't use local ids
-                             PrefService::UNSYNCABLE_PREF);
+                             PrefServiceSyncable::UNSYNCABLE_PREF);
 }
 
 // static