Opus: Fixes overflow in CNG

Opus: Fixes overflow in CNG

Patching in fix from upstream
https://git.xiph.org/?p=opus.git;a=commitdiff;h=5da0498a3e23339aaceba659a97e935031d5693d

BUG=648061
Committed: https://crrev.com/bb7f9001306231ccea72c29836d601e6ffb8533d
Cr-Commit-Position: refs/heads/master@{#419724}

[flim-chromium, 2016-09-19 19:07:18]

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

[commit-bot: I haz the power, 2016-09-19 19:07:55]

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

[flim-chromium, 2016-09-19 19:09:39]

flim@chromium.org changed reviewers:
+ henrika@chromium.org, minyue@chromium.org

[flim-chromium, 2016-09-19 19:09:39]

Hi, here's another one. Can you PTAL? Thanks!

[commit-bot: I haz the power, 2016-09-19 20:17:00]

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

[commit-bot: I haz the power, 2016-09-19 20:17:01]

Dry run: This issue passed the CQ dry run.

[henrika (OOO until Aug 14), 2016-09-20 07:23:58]

Need assistance from minyue@ here

[minyue, 2016-09-20 07:25:27]

lgtm

[henrika (OOO until Aug 14), 2016-09-20 07:52:01]

LGTM

[flim-chromium, 2016-09-20 10:36:09]

The CQ bit was checked by flim@chromium.org

[flim-chromium, 2016-09-20 10:36:09]

The patchset sent to the CQ was uploaded after l-g-t-m from minyue@chromium.org,
henrika@chromium.org
Link to the patchset: https://codereview.chromium.org/2349213003/#ps20001
(title: "Rebasing")

[commit-bot: I haz the power, 2016-09-20 10:36:23]

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, 2016-09-20 12:25:35]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-20 12:27:01]

Description was changed from

==========
Opus: Fixes overflow in CNG

Patching in fix from upstream
https://git.xiph.org/?p=opus.git;a=commitdiff;h=5da0498a3e23339aaceba659a97e9...

BUG=648061
==========

to

==========
Opus: Fixes overflow in CNG

Patching in fix from upstream
https://git.xiph.org/?p=opus.git;a=commitdiff;h=5da0498a3e23339aaceba659a97e9...

BUG=648061

Committed: https://crrev.com/bb7f9001306231ccea72c29836d601e6ffb8533d
Cr-Commit-Position: refs/heads/master@{#419724}
==========

[commit-bot: I haz the power, 2016-09-20 12:27:02]

Patchset 2 (id:??) landed as
https://crrev.com/bb7f9001306231ccea72c29836d601e6ffb8533d
Cr-Commit-Position: refs/heads/master@{#419724}