Dan Rubel 819ac27db3 Merge skia into screenshot (#6623)
* merge `flutter skia` into `flutter screenshot`
* improve skia failed error message
* update help text - how to find diagnostic port for skia
* improve error message if skia capture fails
2016-11-02 14:27:49 -04:00
..
2016-11-02 14:27:49 -04:00