always optimize third_party code

Change-Id: I5b2244460a4760e9336640f597d0f74c374a0d04
Reviewed-on: https://skia-review.googlesource.com/155641
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
3 files changed