Chromium's official builds set -D_FORTIFY_SOURCE=2, causing among other
things warnings about unused return values from stdlib functions.
We don't normally build "all" in that configuration, and so missed some
instances.
Bug: chromium:931227
Change-Id: I69820d4e639c5908e0092dded1dea39c51d45d6b
Reviewed-on: https://webrtc-review.googlesource.com/c/122560
Commit-Queue: Hans Wennborg <hans@chromium.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26657}