On swarming the dEQP GTEST initialization failures would show as green
because the FAIL GTEST macro was called outside of a test. Use exit(-1)
instead that shows up as red on the bots.

BUG=580045

Change-Id: Icf82a8593a11fe7e992778ffd8c682f6738c39a6
Reviewed-on: https://chromium-review.googlesource.com/326690Reviewed-by: Geoff Lang <geofflang@chromium.org>