add private static field for HTTP 404 value in ListFileRemoteOperation

 */

public class ListFileRemoteOperation extends RemoteOperation<ArrayList<RemoteFile>> {

    private final String TAG = ListFileRemoteOperation.class.getSimpleName();

    private static final int HTTP_404 = 404;

    private final List<SyncedFolder> syncedFolders;

    private final Context context;

                final boolean dirHasChanged = onListFileSuccess(mSyncedFolderIterator, syncedFolder, result);

                atLeastOneDirAsChanged = dirHasChanged || atLeastOneDirAsChanged; //stay true if set previously

            } else { //Result isn't a success

                if (result.getHttpCode() == 404) { //dir has not been found

                if (result.getHttpCode() == HTTP_404) { //dir has not been found

                    atLeastOneDirAsChanged = true;

                    onHttp404Received(mSyncedFolderIterator, syncedFolder);

                }