Add Goma to CQ as experimental.

This duplicates a non-Goma Build so that we can get a better comparison
of how much Goma improves tryjob build times.

Change-Id: I9fc72b466abf07b8a47d4ced2da1ab526228b82c
Reviewed-on: https://skia-review.googlesource.com/85920
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
1 file changed