This was found to be uninitialized by an internal MSAN bot. Bug: b/276318905 Change-Id: I0f0742113b6a5eba10ec6f51072510c91bf5676b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/301401 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Auto-Submit: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39871}