Bug 21305111

Change-Id: I3803f274f25a25ec60f0f5cbfc4af0151f39ad04
Reviewed-on: https://swiftshader-review.googlesource.com/4505Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>