code: function(projection, map) {
      Dispatcher.dispatch({
        type: Constants.MAP_PROJECTION,
        projection: projection,
        map: map
      });
    }
docs: when goole map is rendered the stores need to get the projection
  to convert positions from pixels to latlng and vice versa
  @param  {Object} projection google map projection
  @param  {Object} map        google map object