Clean starting point for interop. VK will let us dodge this entirely.

Bug: skia:
Change-Id: I4bc961e7e1b9ef30c5bfc096fb3f81af9191e750
Reviewed-on: https://skia-review.googlesource.com/136860
Commit-Queue: Allan MacKinnon <allanmac@google.com>
Reviewed-by: Allan MacKinnon <allanmac@google.com>
20 files changed