This minor issue was found by the UBSAN fuzzer. We have used the Godbolt compiler explorer to check that similar changes produce identical compiled code. Bug: chromium:803078 Change-Id: Ib3fa38c101d7bda53d8d39062cb2c0a55144305f Reviewed-on: https://webrtc-review.googlesource.com/42580 Reviewed-by: Sam Zackrisson <saza@webrtc.org> Commit-Queue: Alex Loiko <aleloi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21713}