Remove PrefServiceSimple, replacing it with PrefService and PrefRegistrySimple.

base/prefs/default_pref_store.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 "base/prefs/default_pref_store.h"
 #include "base/logging.h"
 
 using base::Value;
 
 DefaultPrefStore::DefaultPrefStore() {}
 
 bool DefaultPrefStore::GetValue(
     const std::string& key,
     const base::Value** result) const {
   return prefs_.GetValue(key, result);
 }
 
 void DefaultPrefStore::SetDefaultValue(const std::string& key, Value* value) {
   DCHECK(!GetValue(key, NULL));
   prefs_.SetValue(key, value);
 }
 
 void DefaultPrefStore::RemoveDefaultValue(const std::string& key) {
   DCHECK(GetValue(key, NULL));
   prefs_.RemoveValue(key);
 }
 
-base::Value::Type DefaultPrefStore::GetType(const std::string& key) const {
-  const Value* value = NULL;
-  return GetValue(key, &value) ? value->GetType() : Value::TYPE_NULL;
-}
-
 DefaultPrefStore::const_iterator DefaultPrefStore::begin() const {
   return prefs_.begin();
 }
 
 DefaultPrefStore::const_iterator DefaultPrefStore::end() const {
   return prefs_.end();
 }
 
 DefaultPrefStore::~DefaultPrefStore() {}