Extension Settings API: make it so that when leveldb storage areas fail to be

chrome/browser/extensions/settings/settings_test_util.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_TEST_UTIL_H_
 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_TEST_UTIL_H_
 #pragma once
 
 #include <string>
 
+#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/memory/ref_counted.h"
 #include "chrome/browser/extensions/extension_event_router.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/test_extension_service.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/test/base/testing_profile.h"
 
-class SettingsFrontend;
 
 namespace extensions {
 
+class SettingsFrontend;
+class SettingsStorage;
+
 // Utilities for extension settings API tests.
 namespace settings_test_util {
 
 // Synchronously gets the storage area for an extension from |frontend|.
 SettingsStorage* GetStorage(
     const std::string& extension_id, SettingsFrontend* frontend);
 
 // An ExtensionService which allows extensions to be hand-added to be returned
 // by GetExtensionById.
 class MockExtensionService : public TestExtensionService {
@@ skipping 28 matching lines @@
  private:
   MockExtensionService extension_service_;
   scoped_ptr<ExtensionEventRouter> event_router_;
 };
 
 }  // namespace settings_test_util
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_TEST_UTIL_H_