tree 0f357adaccb26c03237180afdd7058d2ea07bba5
parent f00adba7fe33c50b1522e6c784de4c4ecd4bf611
author Yunlian Jiang <yunlian@google.com> 1369870191 -0700
committer ChromeBot <chrome-bot@google.com> 1370295196 -0700

crosperf: use mac address as machine id if VPD is not available.

For zgb machine, the dump_vpd_log --full --stdout does not return
serial number, in this case, we use mac address instead.

BUG=None
TEST=It get machine id for zgb

Change-Id: I1058dcd2a18638533c90a40d09adcc7a6bd8a660
Reviewed-on: https://gerrit-int.chromium.org/38900
Reviewed-by: Luis Lozano <llozano@chromium.org>
Tested-by: Yunlian Jiang <yunlian@google.com>
Commit-Queue: Yunlian Jiang <yunlian@google.com>