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

chrome/browser/extensions/settings/settings_storage_quota_enforcer.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_STORAGE_QUOTA_ENFORCER_H_
 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_STORAGE_QUOTA_ENFORCER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 11 matching lines @@
       size_t max_keys,
       // Ownership taken.
       SettingsStorage* delegate);
 
   virtual ~SettingsStorageQuotaEnforcer();
 
   // 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& settings) 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:
   // The storage quota in bytes.
   size_t const quota_bytes_;
 
   // The quota per individual setting in bytes.
   size_t const quota_bytes_per_setting_;
 
   // The maximum number of settings keys allowed.
   size_t const max_keys_;
 
   // The delegate storage area.
   scoped_ptr<SettingsStorage> const delegate_;
 
   // Total size of the settings currently being used.  Includes both settings
   // keys and their JSON-encoded values.
   size_t used_total_;
 
   // Map of key to size of that key, including the key itself.
   std::map<std::string, size_t> used_per_setting_;
 
   DISALLOW_COPY_AND_ASSIGN(SettingsStorageQuotaEnforcer);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_STORAGE_QUOTA_ENFORCER_H_