[Sync] Put everything in sync/api into csync namespace

chrome/browser/extensions/app_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_APP_SYNC_DATA_H_
 #define CHROME_BROWSER_EXTENSIONS_APP_SYNC_DATA_H_
 #pragma once
 
 #include "chrome/browser/extensions/extension_sync_data.h"
 #include "chrome/common/string_ordinal.h"
 #include "sync/api/sync_change.h"
 
+namespace csync {
 class SyncData;
+}
+
 namespace sync_pb {
 class AppSpecifics;
 }
 
 namespace extensions {
 
 class Extension;
 class ExtensionSyncData;
 
 // A class that encapsulates the synced properties of an Application.
 class AppSyncData {
  public:
   AppSyncData();
-  explicit AppSyncData(const SyncData& sync_data);
-  explicit AppSyncData(const SyncChange& sync_change);
+  explicit AppSyncData(const csync::SyncData& sync_data);
+  explicit AppSyncData(const csync::SyncChange& sync_change);
   AppSyncData(const Extension& extension,
               bool enabled,
               bool incognito_enabled,
               const std::string& notifications_client_id,
               bool notifications_disabled,
               const StringOrdinal& app_launch_ordinal,
               const StringOrdinal& page_ordinal);
   ~AppSyncData();
 
   // Retrive sync data from this class.
-  SyncData GetSyncData() const;
-  SyncChange GetSyncChange(SyncChange::SyncChangeType change_type) const;
+  csync::SyncData GetSyncData() const;
+  csync::SyncChange GetSyncChange(
+      csync::SyncChange::SyncChangeType change_type) const;
 
   const std::string& id() const { return extension_sync_data_.id(); }
 
   bool uninstalled() const { return extension_sync_data_.uninstalled(); }
 
   const std::string& notifications_client_id() const {
     return notifications_client_id_;
   }
 
   bool notifications_disabled() const {
@@ skipping 11 matching lines @@
     return extension_sync_data_;
   }
 
  private:
   // Convert an AppSyncData back out to a sync structure.
   void PopulateAppSpecifics(sync_pb::AppSpecifics* specifics) const;
 
   // Populate this class from sync inputs.
   void PopulateFromAppSpecifics(
       const sync_pb::AppSpecifics& specifics);
-  void PopulateFromSyncData(const SyncData& sync_data);
+  void PopulateFromSyncData(const csync::SyncData& sync_data);
 
   ExtensionSyncData extension_sync_data_;
   std::string notifications_client_id_;
   bool notifications_disabled_;
   StringOrdinal app_launch_ordinal_;
   StringOrdinal page_ordinal_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_APP_SYNC_DATA_H_