Move SkDeferredDisplayList.h into include\core

Clients will need official access to this class for the compilation iterator.

This CL also hides some of the cruft we don't want exposed.

Bug: skia:9455
Change-Id: I408c19f9ecd6880a5a7853def591407b0ca43e4e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/272343
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
13 files changed