1. Avoid explicitly specifying COM_QUERY in calls to QueryInterface
(it is implied from the name).
2. Drop redundant ctor and set() that duplicate QueryInterface.
3. Allow ThrowIfFailed without a message.
Change-Id: I75b545e534efb7e57da131dfd40a2a49d204efac
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/198033
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Jenkins
Mike Kaganski
3a54d9870f