[canvaskit] Expose Canvas.getDeviceClipBounds()

Change-Id: Ie70e34873e755701fcfb04d0fcedf796ad9a4516
Bug: skia:13347
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/543296
Reviewed-by: Jorge Betancourt <jmbetancourt@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
9 files changed