sandbox-bpf: more robust probe process in release mode

In release mode, we don't fail on probe process failing on close() as an
attempt to circumvent a very puzzling bug.

BUG=152530


Review URL: https://chromiumcodereview.appspot.com/11446011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171351 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed