~BitstreamReader() DCHECKs that the last read has been verified, so all paths where we may leave the slice_reader instance's scope early must be guarded by an Ok(). Bug: None Change-Id: Ic67f87c04d1f042392c1dd6a066fdccf26e19003 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/369540 Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43463}