anchor.diff:    TextAreaElement _commitMessageElement;
     InputElement _userNameElement;
     InputElement _userEmailElement;
  -  DivElement _gitStatusElement;
  +  Element _gitStatusElement;
     DivElement _gitChangeElement;
     bool _needsFillNameEmail;
     String _gitName;
  
positive.code:       _gitStatusElement.text =
            '$modifiedCnt ${(modifiedCnt > 1) ? 'files' : 'file'} modified, ' +
            '$addedCnt ${(addedCnt > 1) ? 'files' : 'file'} added.';
        getElement('#gitStatusDetail').onClick.listen((e) {
          _gitChangeElement.style.display =
              _gitChangeElement.style.display == 'none' ? 'block' : 'none';
        });
      // TODO(sunglim): show the count of deletetd files.
      }
    }
  
negative.code:       _userNameElement.value = '';
        _userEmailElement.value = '';
        _gitChangeElement.text = '';
        _gitChangeElement.style.display = 'none';
  
        _addGitStatus();
  
  