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

components/sync/core/simple_metadata_change_list.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_CORE_SIMPLE_METADATA_CHANGE_LIST_H_
 #define COMPONENTS_SYNC_CORE_SIMPLE_METADATA_CHANGE_LIST_H_
 
 #include <map>
 #include <string>
 
 #include "components/sync/api/metadata_change_list.h"
 #include "components/sync/api/model_type_store.h"
 #include "components/sync/core/non_blocking_sync_common.h"
 #include "components/sync/protocol/data_type_state.pb.h"
 #include "components/sync/protocol/entity_metadata.pb.h"
 
-namespace syncer_v2 {
+namespace syncer {
 
 // A MetadataChangeList implementation that is meant to be used in combination
 // with a ModelTypeStore. It accumulates changes in member fields, and then when
 // requested transfers them to the store/write batch.
 class SimpleMetadataChangeList : public MetadataChangeList {
  public:
   enum ChangeType { UPDATE, CLEAR };
 
   struct MetadataChange {
     ChangeType type;
@@ skipping 25 matching lines @@
   // local copies. Calling this multiple times will work, but should not be
   // necessary.
   void TransferChanges(ModelTypeStore* store,
                        ModelTypeStore::WriteBatch* write_batch);
 
  private:
   MetadataChanges metadata_changes_;
   std::unique_ptr<DataTypeStateChange> state_change_;
 };
 
-}  // namespace syncer_v2
+}  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_CORE_SIMPLE_METADATA_CHANGE_LIST_H_