Simplify device clip restriction impl
This removes all low-level handling of the device clip restriction. It's
no longer part of the SkDevice API, nor needed by any of the backend-
specific classes for handling their clip stack.s
The device restriction is intersected using a regular op when it's set
and it's remembered and manually applied to the device bounds when
resetClip() is called. This is all handled inside SkCanvas.
I also took the opportunity to add asserts and better state transitions
to its implementation, since it had been in an awkward middle ground
between depending on the save/restore stack and not being kept in
sync with it.
Bug: skia:12252
Change-Id: Ie7b13d262fd5e32e0e80aaf46ba009f3722208c0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/437689
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
14 files changed