Add trivial unit-tests for WTF assertion macros.

Add trivial unit-tests for WTF assertion macros.

Assertion.h provides macros active only in Debug builds, but also ones
active in all builds, including ones used to crash out on when security-
sensitive conditions are violated, so it's important to test they work
as intended.

Review-Url: https://codereview.chromium.org/2626813002
Cr-Commit-Position: refs/heads/master@{#442717}
Committed: https://chromium.googlesource.com/chromium/src/+/c86a9031e0eb3e568b17d840fc7e6c3eb67b2a9a

[Wez, 2017-01-10 21:52:54]

The CQ bit was checked by wez@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-01-10 21:53:39]

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

[Wez, 2017-01-10 22:04:47]

wez@chromium.org changed reviewers:
+ esprehn@chromium.org

[Wez, 2017-01-10 22:04:47]

PTAL :)

[Wez, 2017-01-10 22:05:33]

wez@chromium.org changed reviewers:
+ tkent@chromium.org
- esprehn@chromium.org

[Wez, 2017-01-10 22:05:33]

-esprehn, +tkent who seems to be more blame'd!

[esprehn, 2017-01-10 22:08:09]

esprehn@chromium.org changed reviewers:
+ esprehn@chromium.org

[esprehn, 2017-01-10 22:08:10]

lgtm

[Wez, 2017-01-10 22:08:31]

The CQ bit was unchecked by wez@chromium.org

[Wez, 2017-01-10 22:08:32]

The CQ bit was checked by wez@chromium.org

[commit-bot: I haz the power, 2017-01-10 22:09:01]

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, 2017-01-10 22:55:33]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484086112231110, "parent_rev":
"a37aa9aba0b044da96bc3077cb943c52bf046ae9", "commit_rev":
"c86a9031e0eb3e568b17d840fc7e6c3eb67b2a9a"}

[commit-bot: I haz the power, 2017-01-10 22:56:04]

Description was changed from

==========
Add trivial unit-tests for WTF assertion macros.

Assertion.h provides macros active only in Debug builds, but also ones
active in all builds, including ones used to crash out on when security-
sensitive conditions are violated, so it's important to test they work
as intended.
==========

to

==========
Add trivial unit-tests for WTF assertion macros.

Assertion.h provides macros active only in Debug builds, but also ones
active in all builds, including ones used to crash out on when security-
sensitive conditions are violated, so it's important to test they work
as intended.

Review-Url: https://codereview.chromium.org/2626813002
Cr-Commit-Position: refs/heads/master@{#442717}
Committed:
https://chromium.googlesource.com/chromium/src/+/c86a9031e0eb3e568b17d840fc7e...
==========

[commit-bot: I haz the power, 2017-01-10 22:56:05]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c86a9031e0eb3e568b17d840fc7e...