BUG=swiftshader:9

Change-Id: I779abfe7775632e1108e9d608bf21a63c8cefe9e
Reviewed-on: https://chromium-review.googlesource.com/407882Reviewed-by: Jim Stichnoth <stichnot@chromium.org>
Tested-by: Nicolas Capens <nicolascapens@google.com>