A '--store-test-artifacts' flag is introduced in
gtest-parallel-wrapper.py to make it possible for test running on
swarming to save test artifacts to the swarming output dir.
Bug: chromium:755660
Change-Id: I6bc1fbf210c1f224f3a7186c5444ae063a6af222
Reviewed-on: https://webrtc-review.googlesource.com/7840
Commit-Queue: Edward Lemur <ehmaldonado@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@google.com>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20221}