Go back to cleaning up MIP levels on texture export rather than assuming dirty
on texture import.

Bug: skia:8155
Change-Id: I23399f442d52c73906829132f798eda260b6d4ae
Reviewed-on: https://skia-review.googlesource.com/143291
Auto-Submit: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
3 files changed