message: Flush from IME to PFS when Flush() is called
diff: @@ -232,7 +232,10 @@ size_t FileIME::GetSize()
  return static_cast<size_t>(fileStat.st_size);
  }
  -void FileIME::Flush() {}
  +void FileIME::Flush() {
  + ime_client_native2_fsync(m_FileDescriptor);
  + ime_client_native2_bfs_sync(m_FileDescriptor, true);
  +}
  void FileIME::Close()
  {
  