Make undefined Unicode characters show up in a nicer way in braille.

third_party/liblouis/nacl_wrapper/translation_params.h

 // Copyright 2013 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
 // use this file except in compliance with the License. You may obtain a copy of
 // the License at
 //
 // http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 // License for the specific language governing permissions and limitations under
 // the License.
 
 #ifndef LIBLOUIS_NACL_TRANSLATION_PARAMS_H_
 #define LIBLOUIS_NACL_TRANSLATION_PARAMS_H_
 
 #include <string>
 
 namespace liblouis_nacl {
 
 // Struct containing the parameters of translation.
 struct TranslationParams {
  public:
-  std::string table_name;
+  std::string table_names;
   std::string text;
   int cursor_position;
 };
 
 }
 
 #endif  // LIBLOUIS_NACL_TRANSLATION_PARAMS_H_