Fix a division by zero when multiplying 0 * y with SafeNumerics.

Fix a division by zero when multiplying 0 * y with SafeNumerics.

BUG=488302
Committed: https://crrev.com/0397125f4b28ef43a26920d1e9c4db55d0703f70
Cr-Commit-Position: refs/heads/master@{#330357}

[eroman, 2015-05-18 00:26:39]

eroman@chromium.org changed reviewers:
+ jschuh@chromium.org, tsepez@chromium.org

[eroman, 2015-05-18 00:26:40]

(I only need one of Justin or Tom to review; not sure if Justin is OOO yet).

[jschuh, 2015-05-18 14:26:19]

The CQ bit was checked by jschuh@chromium.org

[jschuh, 2015-05-18 14:26:20]

lgtm

[commit-bot: I haz the power, 2015-05-18 14:27:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1142783002/1

[jschuh, 2015-05-18 14:28:04]

https://codereview.chromium.org/1142783002/diff/1/base/numerics/safe_math_impl.h
File base/numerics/safe_math_impl.h (left):

https://codereview.chromium.org/1142783002/diff/1/base/numerics/safe_math_imp...
base/numerics/safe_math_impl.h:180: if (!(x || y)) {
fwiw, I think I intended this:

  if (!(x | y)) {

but, that's confusing and probably an unnecessary optimization.

[commit-bot: I haz the power, 2015-05-18 14:44:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-18 14:45:38]

Patchset 1 (id:??) landed as
https://crrev.com/0397125f4b28ef43a26920d1e9c4db55d0703f70
Cr-Commit-Position: refs/heads/master@{#330357}