minyue 53ff70f582 Reland "Avoiding overflow in cross correlation in NetEq."
The original CL is https://codereview.webrtc.org/1908623002/

An error was caused by that and this CL fix that problem and reland the CL.

BUG=

Review-Url: https://codereview.webrtc.org/1931933004
Cr-Commit-Position: refs/heads/master@{#12589}
2016-05-02 08:50:34 +00:00
..