Should be setting mSkipTest instead of calling abortTest().

Bug: 921004
Change-Id: I7bead806eef0c7825348d509a9dce7ed1bf34825
Reviewed-on: https://chromium-review.googlesource.com/c/1407250Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>