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

components/sync/model/attachments/attachment_metadata.h

Index: components/sync/model/attachments/attachment_metadata.h
diff --git a/components/sync/api/attachments/attachment_metadata.h b/components/sync/model/attachments/attachment_metadata.h
similarity index 79%
rename from components/sync/api/attachments/attachment_metadata.h
rename to components/sync/model/attachments/attachment_metadata.h
index 240419047e525fa50e45fb136d98d19509004d7e..415e2526d9122f911f43a3919f068689be39d887 100644
--- a/components/sync/api/attachments/attachment_metadata.h
+++ b/components/sync/model/attachments/attachment_metadata.h
@@ -2,14 +2,14 @@
 // 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_METADATA_H_
-#define COMPONENTS_SYNC_API_ATTACHMENTS_ATTACHMENT_METADATA_H_
+#ifndef COMPONENTS_SYNC_MODEL_ATTACHMENTS_ATTACHMENT_METADATA_H_
+#define COMPONENTS_SYNC_MODEL_ATTACHMENTS_ATTACHMENT_METADATA_H_
 
 #include <stddef.h>
 
 #include <vector>
 
-#include "components/sync/api/attachments/attachment_id.h"
+#include "components/sync/model/attachments/attachment_id.h"
 
 namespace syncer {
 
@@ -41,4 +41,4 @@ typedef std::vector<AttachmentMetadata> AttachmentMetadataList;
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_API_ATTACHMENTS_ATTACHMENT_METADATA_H_
+#endif  // COMPONENTS_SYNC_MODEL_ATTACHMENTS_ATTACHMENT_METADATA_H_