Bug 21278131

Change-Id: Ieef56c20684906037345960d015a5662fe25551e
Reviewed-on: https://swiftshader-review.googlesource.com/3240Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>