Avoid integer overflow in WheelEvent constructor

Avoid integer overflow in WheelEvent constructor

Don't negate when long values are LONG_MIN

BUG=634794
Committed: https://crrev.com/f352827c452f7d6b493cd03cc367221368912879
Cr-Commit-Position: refs/heads/master@{#412194}

[bashi, 2016-08-16 07:02:31]

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

[commit-bot: I haz the power, 2016-08-16 07:02:43]

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

[bashi, 2016-08-16 07:14:48]

bashi@chromium.org changed reviewers:
+ tzik@chromium.org, yutak@chromium.org

[bashi, 2016-08-16 07:14:49]

PTAL

Chose this fix to keep the same behavior in tests.

[tzik, 2016-08-16 07:26:48]

lgtm

[Yuta Kitamura, 2016-08-16 07:26:51]

lgtm

[bashi, 2016-08-16 07:29:42]

bashi@chromium.org changed reviewers:
+ yhirano@chromium.org

[bashi, 2016-08-16 07:29:42]

(Adding more context)

I tried casting values to double as yhirano@ suggested (thanks for the
suggestion!) but it turned out "0" becomes "-0" and expectations changed so I
didn't choose casting.

[commit-bot: I haz the power, 2016-08-16 08:14:06]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-08-16 08:14:06]

Dry run: This issue passed the CQ dry run.

[yhirano, 2016-08-16 08:29:53]

lgtm

[bashi, 2016-08-16 08:39:48]

The CQ bit was checked by bashi@chromium.org

[commit-bot: I haz the power, 2016-08-16 08:40:07]

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, 2016-08-16 08:43:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-16 08:45:10]

Description was changed from

==========
Avoid integer overflow in WheelEvent constructor

Don't negate when long values are LONG_MIN

BUG=634794
==========

to

==========
Avoid integer overflow in WheelEvent constructor

Don't negate when long values are LONG_MIN

BUG=634794

Committed: https://crrev.com/f352827c452f7d6b493cd03cc367221368912879
Cr-Commit-Position: refs/heads/master@{#412194}
==========

[commit-bot: I haz the power, 2016-08-16 08:45:11]

Patchset 1 (id:??) landed as
https://crrev.com/f352827c452f7d6b493cd03cc367221368912879
Cr-Commit-Position: refs/heads/master@{#412194}