Disable webkit/array-iterate-backwards for debug builds.

Disable webkit/array-iterate-backwards for debug builds.

(Debug builds have --enable-slow-asserts, and with slow asserts each
assignment to the array in the prepare function will trigger a check
over the entire array. This turns it into n^2 work, for reasonably
large n.)

BUG=

Committed: https://crrev.com/c72c28dd00d8e027c5b1abb62689b6185dd07cd7
Cr-Commit-Position: refs/heads/master@{#26006}

[vogelheim, 2015-01-08 13:20:33]

Patchset #1 (id:1) has been deleted

[vogelheim, 2015-01-08 13:21:51]

vogelheim@chromium.org changed reviewers:
+ machenbach@chromium.org

[vogelheim, 2015-01-08 13:21:52]

I'll check whether this the same reason why it's disabled for TF runs. If so,
I'll remove that line as well.

[vogelheim, 2015-01-08 13:40:49]

On 2015/01/08 13:21:52, vogelheim wrote:
> I'll check whether this the same reason why it's disabled for TF runs. If so,
> I'll remove that line as well.

TF release test is ~8s on my workstation, so I'll leave the TF-specific disable
alone.

[vogelheim, 2015-01-08 19:07:10]

Patchset #2 (id:40001) has been deleted

[Michael Achenbach, 2015-01-09 09:54:35]

lgtm

[vogelheim, 2015-01-09 09:56:47]

The CQ bit was checked by vogelheim@chromium.org

[commit-bot: I haz the power, 2015-01-09 09:57:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/831953003/20001

[commit-bot: I haz the power, 2015-01-09 10:27:10]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-01-09 10:27:26]

Patchset 1 (id:??) landed as
https://crrev.com/c72c28dd00d8e027c5b1abb62689b6185dd07cd7
Cr-Commit-Position: refs/heads/master@{#26006}