Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/chromeos/settings/device_settings_cache_unittest.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/chromeos/settings/device_settings_cache.h"
 
 #include "chrome/browser/policy/proto/chrome_device_policy.pb.h"
 #include "chrome/browser/policy/proto/device_management_backend.pb.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_pref_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace em = enterprise_management;
 
 namespace chromeos {
 
 class DeviceSettingsCacheTest : public testing::Test {
  protected:
   virtual void SetUp() {
     // prepare some data.
     policy_.set_policy_type("google/chromeos/device");
     em::ChromeDeviceSettingsProto pol;
     pol.mutable_allow_new_users()->set_allow_new_users(false);
     policy_.set_policy_value(pol.SerializeAsString());
 
     device_settings_cache::RegisterPrefs(&local_state_);
   }
 
-  TestingPrefService local_state_;
+  TestingPrefServiceSimple local_state_;
   em::PolicyData policy_;
 };
 
 TEST_F(DeviceSettingsCacheTest, Basic) {
   EXPECT_TRUE(device_settings_cache::Store(policy_, &local_state_));
 
   em::PolicyData policy_out;
   EXPECT_TRUE(device_settings_cache::Retrieve(&policy_out, &local_state_));
 
   EXPECT_TRUE(policy_out.has_policy_type());
   EXPECT_TRUE(policy_out.has_policy_value());
 
   em::ChromeDeviceSettingsProto pol;
   pol.ParseFromString(policy_out.policy_value());
   EXPECT_TRUE(pol.has_allow_new_users());
   EXPECT_FALSE(pol.allow_new_users().allow_new_users());
 }
 
 TEST_F(DeviceSettingsCacheTest, CorruptData) {
   EXPECT_TRUE(device_settings_cache::Store(policy_, &local_state_));
 
   local_state_.SetString(prefs::kDeviceSettingsCache, "blaaa");
 
   em::PolicyData policy_out;
   EXPECT_FALSE(device_settings_cache::Retrieve(&policy_out, &local_state_));
 }
 
 }  // namespace chromeos