utils/win/SkTScopedComPtr: reset(T*)

Change-Id: I59a687569e2c7b69cdf65ebc9656c7fbffcc32e0
Motivation: to be used by SkXPS.
Reviewed-on: https://skia-review.googlesource.com/6355
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
1 file changed