Update CHUMP detection for GoB.

BUG=chromium:280887
TEST=All unit tests. Example mario-paladin run.

Change-Id: Ia9b3de6d1a8e84a3873f120f0beac20e157a25e7
Reviewed-on: https://chromium-review.googlesource.com/167393
Tested-by: David James <davidjames@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>
Reviewed-by: Chase Phillips <cmp@chromium.org>
Tested-by: Chase Phillips <cmp@chromium.org>
Reviewed-by: Stefan Zager <szager@chromium.org>
Tested-by: Stefan Zager <szager@chromium.org>
1 file changed