Revert 176015

chrome/browser/extensions/api/storage/setting_sync_data.h

-// 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.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
-#define CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/values.h"
-#include "sync/api/sync_change.h"
-
-namespace syncer {
-class SyncData;
-}
-
-namespace sync_pb {
-class ExtensionSettingSpecifics;
-}
-
-namespace extensions {
-
-// Container for data interpreted from sync data/changes for an extension or
-// app setting. Safe and efficient to copy.
-class SettingSyncData {
- public:
-  // Creates from a sync change.
-  explicit SettingSyncData(const syncer::SyncChange& sync_change);
-
-  // Creates from sync data. |change_type| will be ACTION_INVALID.
-  explicit SettingSyncData(const syncer::SyncData& sync_data);
-
-  // Creates explicitly.
-  SettingSyncData(
-      syncer::SyncChange::SyncChangeType change_type,
-      const std::string& extension_id,
-      const std::string& key,
-      scoped_ptr<Value> value);
-
-  ~SettingSyncData();
-
-  // Returns the type of the sync change; may be ACTION_INVALID.
-  syncer::SyncChange::SyncChangeType change_type() const;
-
-  // Returns the extension id the setting is for.
-  const std::string& extension_id() const;
-
-  // Returns the settings key.
-  const std::string& key() const;
-
-  // Returns the value of the setting.
-  const Value& value() const;
-
- private:
-  // Ref-counted container for the data.
-  // TODO(kalman): Use browser_sync::Immutable<Internal>.
-  class Internal : public base::RefCountedThreadSafe<Internal> {
-   public:
-    Internal(
-      syncer::SyncChange::SyncChangeType change_type,
-      const std::string& extension_id,
-      const std::string& key,
-      scoped_ptr<Value> value);
-
-    syncer::SyncChange::SyncChangeType change_type_;
-    std::string extension_id_;
-    std::string key_;
-    scoped_ptr<Value> value_;
-
-   private:
-    friend class base::RefCountedThreadSafe<Internal>;
-    ~Internal();
-  };
-
-  // Initializes internal_ from sync data for an extension or app setting.
-  void Init(syncer::SyncChange::SyncChangeType change_type,
-            const syncer::SyncData& sync_data);
-
-  // Initializes internal_ from extension specifics.
-  void InitFromExtensionSettingSpecifics(
-      syncer::SyncChange::SyncChangeType change_type,
-      const sync_pb::ExtensionSettingSpecifics& specifics);
-
-  scoped_refptr<Internal> internal_;
-};
-
-typedef std::vector<SettingSyncData> SettingSyncDataList;
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTING_SYNC_DATA_H_