Fix the "call to 'abs' is ambiguous" error in line 42

Fix the "call to 'abs' is ambiguous" error in line 42

std::abs() for integers is declared in <cstdlib>, not <cmath>

R=pkotwicz@chromium.org
BUG=None

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=270082

[Alexander Potapenko, 2014-05-12 09:10:47]

Please take a look.

[pkotwicz, 2014-05-12 15:16:41]

LGTM

[Alexander Potapenko, 2014-05-13 08:49:34]

The CQ bit was checked by glider@chromium.org

[commit-bot: I haz the power, 2014-05-13 08:49:51]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/glider@chromium.org/278303002/1

[commit-bot: I haz the power, 2014-05-13 10:41:03]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)
  ios_rel_device on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/ios_rel_device/builds...)

[commit-bot: I haz the power, 2014-05-13 11:09:34]

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

[commit-bot: I haz the power, 2014-05-13 11:09:35]

Try jobs failed on following builders:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)

[Alexander Potapenko, 2014-05-13 11:11:04]

The CQ bit was checked by glider@chromium.org

[commit-bot: I haz the power, 2014-05-13 11:11:25]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/glider@chromium.org/278303002/1

[commit-bot: I haz the power, 2014-05-13 13:19:13]

Change committed as 270082