VT: Fix UAF in tokenizer parsing
Bug: 339458177
Change-Id: I4c62ecc74402a0affc076eb205eeeb8c6687e709
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5528856
Reviewed-by: Khushal Sagar khushalsagar@chromium.org
Commit-Queue: Vladimir Levin vmpstr@chromium.org
Cr-Commit-Position: refs/heads/main@{#1298703}