Don't explode if --tools or --extra-tools isn't specified.

Don't explode if --tools or --extra-tools isn't specified.

BUG=none

Review-Url: https://codereview.chromium.org/2618633005
Cr-Commit-Position: refs/heads/master@{#441846}
Committed: https://chromium.googlesource.com/chromium/src/+/31b6c46900ec8e64ecdf6d288950b31dcd2dd1c3

[dcheng, 2017-01-05 23:04:53]

dcheng@chromium.org changed reviewers:
+ danakj@chromium.org

[dcheng, 2017-01-05 23:04:54]

Oops. =(

[danakj, 2017-01-05 23:06:06]

LGTM

[danakj, 2017-01-05 23:07:12]

The CQ bit was checked by danakj@chromium.org

[commit-bot: I haz the power, 2017-01-05 23:07:38]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-06 02:45:36]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483657632467460, "parent_rev":
"5762217ea3118ac4b0727423c44420aa40b1ca38", "commit_rev":
"31b6c46900ec8e64ecdf6d288950b31dcd2dd1c3"}

[commit-bot: I haz the power, 2017-01-06 02:46:02]

Description was changed from

==========
Don't explode if --tools or --extra-tools isn't specified.

BUG=none
==========

to

==========
Don't explode if --tools or --extra-tools isn't specified.

BUG=none

Review-Url: https://codereview.chromium.org/2618633005
Cr-Commit-Position: refs/heads/master@{#441846}
Committed:
https://chromium.googlesource.com/chromium/src/+/31b6c46900ec8e64ecdf6d288950...
==========

[commit-bot: I haz the power, 2017-01-06 02:46:03]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/31b6c46900ec8e64ecdf6d288950...