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

components/sync/core/processor_entity_tracker.h

 // Copyright 2014 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_PROCESSOR_ENTITY_TRACKER_H_
 #define COMPONENTS_SYNC_CORE_PROCESSOR_ENTITY_TRACKER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/time/time.h"
 #include "components/sync/api/entity_data.h"
 #include "components/sync/protocol/entity_metadata.pb.h"
 
-namespace syncer_v2 {
+namespace syncer {
 struct CommitRequestData;
 struct CommitResponseData;
 struct UpdateResponseData;
 
 // This class is used by the SharedModelTypeProcessor to track the state of each
 // entity with its type. It can be considered a helper class internal to the
 // processor. It manages the metadata for its entity and caches entity data
 // upon a local change until commit confirmation is received.
 class ProcessorEntityTracker {
  public:
@@ skipping 113 matching lines @@
   sync_pb::EntityMetadata metadata_;
 
   // Sync data that exists for items being committed only.
   // The data is reset once commit confirmation is received.
   EntityDataPtr commit_data_;
 
   // The sequence number of the last item sent to the sync thread.
   int64_t commit_requested_sequence_number_;
 };
 
-}  // namespace syncer_v2
+}  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_CORE_PROCESSOR_ENTITY_TRACKER_H_