[Sync] Move //sync to //components/sync.

sync/syncable/model_neutral_mutable_entry.h

-// Copyright 2013 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 SYNC_SYNCABLE_MODEL_NEUTRAL_MUTABLE_ENTRY_H_
-#define SYNC_SYNCABLE_MODEL_NEUTRAL_MUTABLE_ENTRY_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <string>
-
-#include "base/macros.h"
-#include "sync/base/sync_export.h"
-#include "sync/internal_api/public/base/model_type.h"
-#include "sync/syncable/entry.h"
-
-namespace syncer {
-class WriteNode;
-
-namespace syncable {
-
-class BaseWriteTransaction;
-
-enum CreateNewUpdateItem {
-  CREATE_NEW_UPDATE_ITEM
-};
-
-enum CreateNewTypeRoot { CREATE_NEW_TYPE_ROOT };
-
-// This Entry includes all the operations one can safely perform on the sync
-// thread.  In particular, it does not expose setters to make changes that need
-// to be communicated to the model (and the model's thread).  It is not possible
-// to change an entry's SPECIFICS or UNIQUE_POSITION fields with this kind of
-// entry.
-class SYNC_EXPORT ModelNeutralMutableEntry : public Entry {
- public:
-  ModelNeutralMutableEntry(BaseWriteTransaction* trans,
-                           CreateNewUpdateItem,
-                           const Id& id);
-  ModelNeutralMutableEntry(BaseWriteTransaction* trans,
-                           CreateNewTypeRoot,
-                           ModelType type);
-  ModelNeutralMutableEntry(BaseWriteTransaction* trans, GetByHandle, int64_t);
-  ModelNeutralMutableEntry(BaseWriteTransaction* trans, GetById, const Id&);
-  ModelNeutralMutableEntry(
-      BaseWriteTransaction* trans,
-      GetByClientTag,
-      const std::string& tag);
-  ModelNeutralMutableEntry(
-      BaseWriteTransaction* trans,
-      GetTypeRoot,
-      ModelType type);
-
-  inline BaseWriteTransaction* base_write_transaction() const {
-    return base_write_transaction_;
-  }
-
-  // Non-model-changing setters.  These setters will change properties internal
-  // to the node.  These fields are important for bookkeeping in the sync
-  // internals, but it is not necessary to communicate changes in these fields
-  // to the local models.
-  //
-  // Some of them trigger the re-indexing of the entry.  They return true on
-  // success and false on failure, which occurs when putting the value would
-  // have caused a duplicate in the index.  The setters that never fail return
-  // void.
-  void PutBaseVersion(int64_t value);
-  void PutServerVersion(int64_t value);
-  void PutServerMtime(base::Time value);
-  void PutServerCtime(base::Time value);
-  bool PutId(const Id& value);
-  void PutServerParentId(const Id& value);
-  bool PutIsUnsynced(bool value);
-  bool PutIsUnappliedUpdate(bool value);
-  void PutServerIsDir(bool value);
-  void PutServerIsDel(bool value);
-  void PutServerNonUniqueName(const std::string& value);
-  bool PutUniqueServerTag(const std::string& value);
-  bool PutUniqueClientTag(const std::string& value);
-  void PutUniqueBookmarkTag(const std::string& tag);
-  void PutServerSpecifics(const sync_pb::EntitySpecifics& value);
-  void PutBaseServerSpecifics(const sync_pb::EntitySpecifics& value);
-  void PutServerUniquePosition(const UniquePosition& value);
-  void PutServerAttachmentMetadata(const sync_pb::AttachmentMetadata& value);
-  void PutSyncing(bool value);
-  void PutDirtySync(bool value);
-
-  // Do a simple property-only update of the PARENT_ID field.  Use with caution.
-  //
-  // The normal Put(IS_PARENT) call will move the item to the front of the
-  // sibling order to maintain the linked list invariants when the parent
-  // changes.  That's usually what you want to do, but it's inappropriate
-  // when the caller is trying to change the parent ID of a the whole set
-  // of children (e.g. because the ID changed during a commit).  For those
-  // cases, there's this function.  It will corrupt the sibling ordering
-  // if you're not careful.
-  void PutParentIdPropertyOnly(const Id& parent_id);
-
-  // This is similar to what one would expect from Put(TRANSACTION_VERSION),
-  // except that it doesn't bother to invoke 'SaveOriginals'.  Calling that
-  // function is at best unnecessary, since the transaction will have already
-  // used its list of mutations by the time this function is called.
-  void UpdateTransactionVersion(int64_t version);
-
- protected:
-  explicit ModelNeutralMutableEntry(BaseWriteTransaction* trans);
-
-  void MarkDirty();
-
- private:
-  friend class syncer::WriteNode;
-  friend class Directory;
-
-  // Don't allow creation on heap, except by sync API wrappers.
-  void* operator new(size_t size) { return (::operator new)(size); }
-
-  // Kind of redundant. We should reduce the number of pointers
-  // floating around if at all possible. Could we store this in Directory?
-  // Scope: Set on construction, never changed after that.
-  BaseWriteTransaction* const base_write_transaction_;
-
-  DISALLOW_COPY_AND_ASSIGN(ModelNeutralMutableEntry);
-};
-
-}  // namespace syncable
-}  // namespace syncer
-
-#endif  // SYNC_SYNCABLE_MODEL_NEUTRAL_MUTABLE_ENTRY_H_