CBD-1207:  UNDO * 591ecfdc61e536db12641e22d6a3adf615ffcc68
           now using for v8:  revision="refs/tags/3.9.7"
Need to sync our repo with Google's first.

Change-Id: Id525eca350e720f7b1d5d66b50949fd3d4727d4c
Reviewed-on: http://review.couchbase.org/32830
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>