All uses check only for equality. Bug: webrtc:6424 Change-Id: I8755dde02370c89dbc2226bb703664c9e4f88bdb Reviewed-on: https://webrtc-review.googlesource.com/c/106383 Commit-Queue: Niels Moller <nisse@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25274}