f622ba725e
Motivation: read "On Unsigned Integers" section in https://google.github.io/styleguide/cppguide.html#Integer_Types Plus, improved readability by getting rid of a bunch of `static_cast<int>`s. Bug: webrtc:10480 Change-Id: I911aa8cd08f5ccde4ee6f23534240d1faa84cdea Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/190880 Commit-Queue: Alessio Bazzica <alessiob@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32524}