Chrome crashes on large geometries

[oleksii-leonov]

When adding large LineString (with more then ~ 50 000 points) Chrome (36.0.1985.125, Mac OS 10.9) crashes.

Firefox 31 works on 500 000 points, but need about 1 minute to draw this LineString.

Data was added this way:

var json_string = { 
"type": "Feature",
    "geometry": {
        "type": "LineString",
        "coordinates": [ ... ]
  }
};

var sourceObj = new mapboxgl.GeoJSONSource({ data: json_string });
map.addSource('my_linestring', sourceObj);

[mourner]

Thanks for the report! Yeah, ticketed the real cause of this in #671, going to fix this soon.