Update Commit and GetUpdatesResponse messages to include attachment ids.

sync/protocol/proto_value_conversions.cc

 // Copyright (c) 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.
 
 // Keep this file in sync with the .proto files in this directory.
 
 #include "sync/protocol/proto_value_conversions.h"
 
 #include <string>
 
@@ skipping 831 matching lines @@
   SET_INT64(position_in_parent);
   SET(unique_position, UniquePositionToStringValue);
   SET_STR(insert_after_item_id);
   SET_BOOL(deleted);
   SET_STR(originator_cache_guid);
   SET_STR(originator_client_item_id);
   if (include_specifics)
     SET(specifics, EntitySpecificsToValue);
   SET_BOOL(folder);
   SET_STR(client_defined_unique_tag);
+  SET_REP(attachment_id, AttachmentIdProtoToValue);
   return value;
 }
 
 namespace {
 
 base::ListValue* SyncEntitiesToValue(
     const ::google::protobuf::RepeatedPtrField<sync_pb::SyncEntity>& entities,
     bool include_specifics) {
   base::ListValue* list = new base::ListValue();
   ::google::protobuf::RepeatedPtrField<sync_pb::SyncEntity>::const_iterator it;
@@ skipping 257 matching lines @@
 #undef SET_BYTES
 #undef SET_INT32
 #undef SET_INT64
 #undef SET_INT64_REP
 #undef SET_STR
 #undef SET_STR_REP
 
 #undef SET_FIELD
 
 }  // namespace syncer