The Windows helper function HRESULT_CODE masks out some bits that
obscure the error code. This could be why we're seeing some
undetermined errors in our logs.

BUG=477701

Change-Id: I6eee442c149c2568e3823edc538d365b06ee20d8
Reviewed-on: https://chromium-review.googlesource.com/266375Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>