Extension settings API: force through changes that come from sync (ignoring

chrome/browser/extensions/settings/failing_settings_storage.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_FAILING_SETTINGS_STORAGE_H_
 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_FAILING_SETTINGS_STORAGE_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/extensions/settings/settings_storage.h"
 
 namespace extensions {
 
 // Settings storage area which fails every request.
 class FailingSettingsStorage : public SettingsStorage {
  public:
   FailingSettingsStorage() {}
 
   // SettingsStorage implementation.
   virtual ReadResult Get(const std::string& key) OVERRIDE;
   virtual ReadResult Get(const std::vector<std::string>& keys) OVERRIDE;
   virtual ReadResult Get() OVERRIDE;
-  virtual WriteResult Set(const std::string& key, const Value& value) OVERRIDE;
-  virtual WriteResult Set(const DictionaryValue& values) OVERRIDE;
-  virtual WriteResult Remove(const std::string& key) OVERRIDE;
-  virtual WriteResult Remove(const std::vector<std::string>& keys) OVERRIDE;
-  virtual WriteResult Clear() OVERRIDE;
+  virtual WriteResult Set(
+      WriteOptions options,
+      const std::string& key,
+      const Value& value) OVERRIDE;
+  virtual WriteResult Set(
+      WriteOptions options, const DictionaryValue& values) OVERRIDE;
+  virtual WriteResult Remove(
+      WriteOptions options, const std::string& key) OVERRIDE;
+  virtual WriteResult Remove(
+      WriteOptions options, const std::vector<std::string>& keys) OVERRIDE;
+  virtual WriteResult Clear(WriteOptions options) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FailingSettingsStorage);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SETTINGS_FAILING_SETTINGS_STORAGE_H_