Fix a memory leak in CastV2PerformanceTest.Performance.

Bug: 961017
Change-Id: Ie3cbb0d1d23f8a39496e04bef2f78c6018125412
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1614144
Commit-Queue: Caleb Raitto <caraitto@chromium.org>
Reviewed-by: Yuri Wiitala <miu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661467}
3 files changed