Reland "always optimize third_party code"

This is a reland of c766370d86cdf73b5edcc1e67c32316345ca89d7

Original change's description:
> 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>

Change-Id: I63e7f9ca852fc99728d7a01d9987b3506115d266
Reviewed-on: https://skia-review.googlesource.com/155760
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
3 files changed