Only close COM if it was initialized Change-Id: I4ad62ca3fe642ae255f4c808d6ae9e5d7ff72c37 Bug: angleproject:7675 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3906325 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>