Add mock gl fuzzer

Bug: skia:
Change-Id: I661eed3cdddba67aadfff5b3fe7b96ac29180c61
Reviewed-on: https://skia-review.googlesource.com/117637
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
1 file changed