btm: Close additional tab to avoid crash
The test opens a tab and leaves it opened. This causes a crash when
running with --enable-leak-detection. The crash is unrelated to bounce
tracking mitigations: https://crbug.com/374852560
To work around the crash, close the tab that was opened.
Bug: 40279363
Change-Id: I88d143a161a3e2e0da64a2e076f86ba9d0028bb8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5951565
Reviewed-by: Ryan Tarpine rtarpine@chromium.org
Commit-Queue: Giovanni Ortuno Urquidi ortuno@chromium.org
Cr-Commit-Position: refs/heads/main@{#1373074}