[Sync] Move //components/sync to the syncer namespace.

components/sync/api/entity_change.h

 // Copyright 2015 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 COMPONENTS_SYNC_API_ENTITY_CHANGE_H_
 #define COMPONENTS_SYNC_API_ENTITY_CHANGE_H_
 
 #include <string>
 #include <vector>
 
 #include "components/sync/api/entity_data.h"
 
-namespace syncer_v2 {
+namespace syncer {
 
 class EntityChange {
  public:
   enum ChangeType { ACTION_ADD, ACTION_UPDATE, ACTION_DELETE };
 
   static EntityChange CreateAdd(const std::string& storage_key,
                                 EntityDataPtr data);
   static EntityChange CreateUpdate(const std::string& storage_key,
                                    EntityDataPtr data);
   static EntityChange CreateDelete(const std::string& storage_key);
@@ skipping 10 matching lines @@
                ChangeType type,
                EntityDataPtr data);
 
   std::string storage_key_;
   ChangeType type_;
   EntityDataPtr data_;
 };
 
 typedef std::vector<EntityChange> EntityChangeList;
 
-}  // namespace syncer_v2
+}  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_API_ENTITY_CHANGE_H_