convert bug fiddle into a GM

Bug: skia:6886
Change-Id: Ic184ef7e5dd76615f626581b897a3606c6241aa7
Reviewed-on: https://skia-review.googlesource.com/c/177001
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
2 files changed