UnionPay credit card numbers now validated by Luhn checksum.

UnionPay credit card numbers now validated by Luhn checksum.

In crbug.com/242274 validation of UnionPay credit cards was disabled.

The fix was based on Wikipedia article with unreliable source. Here is an edit https://goo.gl/aBmedp changed "unknown" to "no validation" by unregistered user w/o any reference. After a while that was corrected https://goo.gl/phVfrJ
I have checked up Amazon.com payment cards form and it accepts only UnionPay cards that pass Luhn checksum.

BUG=628518
R=mathp@chromium.org

Committed: https://crrev.com/c2e6e3149e3abd4de5b9969c2ece3caa019c3540
Cr-Commit-Position: refs/heads/master@{#409122}

[Mathieu, 2016-08-01 13:42:29]

lgtm, thanks for looking through this!

[Mikhail Goncharov, 2016-08-02 01:45:45]

The CQ bit was checked by metaflow@yandex-team.ru

[commit-bot: I haz the power, 2016-08-02 01:45:59]

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, 2016-08-02 02:27:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-02 02:28:59]

Description was changed from

==========
UnionPay credit card numbers now validated by Luhn checksum.

In crbug.com/242274 validation of UnionPay credit cards was disabled.

The fix was based on Wikipedia article with unreliable source. Here is an edit
https://goo.gl/aBmedp changed "unknown" to "no validation" by unregistered user
w/o any reference. After a while that was corrected https://goo.gl/phVfrJ
I have checked up Amazon.com payment cards form and it accepts only UnionPay
cards that pass Luhn checksum.


BUG=628518
R=mathp@chromium.org
==========

to

==========
UnionPay credit card numbers now validated by Luhn checksum.

In crbug.com/242274 validation of UnionPay credit cards was disabled.

The fix was based on Wikipedia article with unreliable source. Here is an edit
https://goo.gl/aBmedp changed "unknown" to "no validation" by unregistered user
w/o any reference. After a while that was corrected https://goo.gl/phVfrJ
I have checked up Amazon.com payment cards form and it accepts only UnionPay
cards that pass Luhn checksum.

BUG=628518
R=mathp@chromium.org

Committed: https://crrev.com/c2e6e3149e3abd4de5b9969c2ece3caa019c3540
Cr-Commit-Position: refs/heads/master@{#409122}
==========

[commit-bot: I haz the power, 2016-08-02 02:29:00]

Patchset 1 (id:??) landed as
https://crrev.com/c2e6e3149e3abd4de5b9969c2ece3caa019c3540
Cr-Commit-Position: refs/heads/master@{#409122}