The previous fix would allow the calling app to trigger
an ASSERT if it did not first call ShFinalize. Chrome
would do this in some cases, causing a test failure.

BUG=344043

Change-Id: I33fa0c4668dac8750ca949febc7f02cc7d3d95e7
Reviewed-on: https://chromium-review.googlesource.com/187849Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>