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

sync/engine/commit_contribution.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 SYNC_ENGINE_COMMIT_CONTRIBUTION_H_
-#define SYNC_ENGINE_COMMIT_CONTRIBUTION_H_
-
-#include <stddef.h>
-
-#include "sync/base/sync_export.h"
-#include "sync/internal_api/public/util/syncer_error.h"
-#include "sync/protocol/sync.pb.h"
-#include "sync/sessions/status_controller.h"
-
-namespace syncer {
-
-namespace sessions {
-class StatusController;
-}  // namespace sessions
-
-// This class represents a set of items belonging to a particular data type that
-// have been selected from a CommitContributor and prepared for commit.
-//
-// This class handles the bookkeeping related to the commit of these items.
-class SYNC_EXPORT CommitContribution {
- public:
-  CommitContribution();
-  virtual ~CommitContribution() = 0;
-
-  // Serialize this contribution's entries to the given commit request |msg|.
-  //
-  // This function is not const.  It may update some state in this contribution
-  // that will be used when processing the associated commit response.  This
-  // function should not be called more than once.
-  virtual void AddToCommitMessage(sync_pb::ClientToServerMessage* msg) = 0;
-
-  // Updates this contribution's contents in accordance with the provided
-  // |response|.
-  //
-  // It is not valid to call this function unless AddToCommitMessage() was
-  // called earlier.  This function should not be called more than once.
-  virtual SyncerError ProcessCommitResponse(
-      const sync_pb::ClientToServerResponse& response,
-      sessions::StatusController* status) = 0;
-
-  // Cleans up any temproary state associated with the commit.  Must be called
-  // before destruction.
-  virtual void CleanUp() = 0;
-
-  // Returns the number of entries included in this contribution.
-  virtual size_t GetNumEntries() const = 0;
-};
-
-}  // namespace syncer
-
-#endif  // SYNC_ENGINE_COMMIT_CONTRIBUTION_H_