crosperf: add  results_organizer_unittest

BUG=None
TEST=Unittest passes.

Change-Id: I1fda414c1379af40cd1efc13461ed34aafe11847
Reviewed-on: https://gerrit-int.chromium.org/38326
Reviewed-by: Luis Lozano <llozano@chromium.org>
Tested-by: Yunlian Jiang <yunlian@google.com>
Commit-Queue: Yunlian Jiang <yunlian@google.com>
2 files changed