Update Viewer for SkFont overrides.

Change-Id: I18871dd6db647b24db08a3e92e0470c5baa5850c
Reviewed-on: https://skia-review.googlesource.com/c/186082
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2 files changed