Extension Settings API: make it so that when changes received from Sync fail to

chrome/browser/extensions/settings/settings_storage_cache_unittest.cc

 // Copyright (c) 2011 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/extensions/settings/settings_storage_unittest.h"
 
 #include "chrome/browser/extensions/settings/settings_storage_cache.h"
-#include "chrome/browser/extensions/settings/in_memory_settings_storage.h"
+#include "chrome/browser/extensions/settings/testing_settings_storage.h"
 
 namespace extensions {
 
 namespace {
 
 SettingsStorage* Param(
     const FilePath& file_path, const std::string& extension_id) {
-  return new SettingsStorageCache(
-      new InMemorySettingsStorage());
+  return new SettingsStorageCache(new TestingSettingsStorage());
 }
 
 }  // namespace
 
 INSTANTIATE_TEST_CASE_P(
     SettingsStorageCache,
     ExtensionSettingsStorageTest,
     testing::Values(&Param));
 
 }  // namespace extensions