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

sync/internal_api/syncapi_internal.h

-// Copyright 2012 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_INTERNAL_API_SYNCAPI_INTERNAL_H_
-#define SYNC_INTERNAL_API_SYNCAPI_INTERNAL_H_
-
-// The functions defined are shared among some of the classes that implement
-// the internal sync API.  They are not to be used by clients of the API.
-
-#include <string>
-
-#include "sync/base/sync_export.h"
-
-namespace sync_pb {
-class AttachmentMetadata;
-class EntitySpecifics;
-class PasswordSpecificsData;
-}
-
-namespace syncer {
-
-class Cryptographer;
-
-sync_pb::PasswordSpecificsData* DecryptPasswordSpecifics(
-    const sync_pb::EntitySpecifics& specifics,
-    Cryptographer* crypto);
-
-SYNC_EXPORT void SyncAPINameToServerName(const std::string& syncer_name,
-                                         std::string* out);
-SYNC_EXPORT void ServerNameToSyncAPIName(const std::string& server_name,
-                                         std::string* out);
-
-bool IsNameServerIllegalAfterTrimming(const std::string& name);
-
-bool AreSpecificsEqual(const Cryptographer* cryptographer,
-                       const sync_pb::EntitySpecifics& left,
-                       const sync_pb::EntitySpecifics& right);
-
-// Return true iff |left| and |right| are equal.
-bool AreAttachmentMetadataEqual(const sync_pb::AttachmentMetadata& left,
-                                const sync_pb::AttachmentMetadata& right);
-
-}  // namespace syncer
-
-#endif  // SYNC_INTERNAL_API_SYNCAPI_INTERNAL_H_