Update MDB flags to match switches in Chrome & Android

Change-Id: Ifea5879ab83499c9b1a3572747088f9233b20074
Reviewed-on: https://skia-review.googlesource.com/69540
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
4 files changed