[Sync] Renaming sync/api* to sync/model*.

components/sync/model/attachments/attachment_id.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_API_ATTACHMENTS_ATTACHMENT_ID_H_
-#define COMPONENTS_SYNC_API_ATTACHMENTS_ATTACHMENT_ID_H_
+#ifndef COMPONENTS_SYNC_MODEL_ATTACHMENTS_ATTACHMENT_ID_H_
+#define COMPONENTS_SYNC_MODEL_ATTACHMENTS_ATTACHMENT_ID_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "components/sync/base/immutable.h"
 
@@ skipping 61 matching lines @@
   explicit AttachmentId(sync_pb::AttachmentIdProto* proto);
 };
 
 // All public interfaces use AttachmentIdList. AttachmentIdSet is used in
 // implementations of algorithms where set properties are needed.
 typedef std::vector<AttachmentId> AttachmentIdList;
 typedef std::set<AttachmentId> AttachmentIdSet;
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_API_ATTACHMENTS_ATTACHMENT_ID_H_
+#endif  // COMPONENTS_SYNC_MODEL_ATTACHMENTS_ATTACHMENT_ID_H_