[Sync] Move the last things out of core/.

components/sync/core/model_type_processor.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_MODEL_TYPE_PROCESSOR_H_
-#define COMPONENTS_SYNC_CORE_MODEL_TYPE_PROCESSOR_H_
-
-#include <memory>
-
-#include "components/sync/core/non_blocking_sync_common.h"
-#include "components/sync/protocol/model_type_state.pb.h"
-
-namespace syncer {
-class CommitQueue;
-
-// Interface used by sync backend to issue requests to a synced data type.
-class ModelTypeProcessor {
- public:
-  ModelTypeProcessor();
-  virtual ~ModelTypeProcessor();
-
-  // Connect this processor to the sync engine via |commit_queue|. Once called,
-  // the processor will send any pending and future commits via this channel.
-  // This can only be called multiple times if the processor is disconnected
-  // (via the DataTypeController) in between.
-  virtual void ConnectSync(std::unique_ptr<CommitQueue> commit_queue) = 0;
-
-  // Disconnect this processor from the sync engine. Change metadata will
-  // continue being processed and persisted, but no commits can be made until
-  // the next time sync is connected.
-  virtual void DisconnectSync() = 0;
-
-  // Informs this object that some of its commit requests have been
-  // successfully serviced.
-  virtual void OnCommitCompleted(
-      const sync_pb::ModelTypeState& type_state,
-      const CommitResponseDataList& response_list) = 0;
-
-  // Informs this object that there are some incoming updates is should
-  // handle.
-  virtual void OnUpdateReceived(const sync_pb::ModelTypeState& type_state,
-                                const UpdateResponseDataList& updates) = 0;
-};
-
-}  // namespace syncer
-
-#endif  // COMPONENTS_SYNC_CORE_MODEL_TYPE_PROCESSOR_H_