The computation (x-127) << 8 is undefined for x < 127.
This CL replaces the shift with a multiplication: (x-127) * (1 << 8)
Bug: chromium:793201
Change-Id: I38b40bd88300208a0bfbbd8fe144b0a5b51a48ed
Reviewed-on: https://webrtc-review.googlesource.com/31800
Commit-Queue: Sam Zackrisson <saza@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21205}