Don't do clear or round rect optimizations when a rect has stencil

Change-Id: Ib506c0cc3c46d1bf514b35a8ba78d31d3e84f22c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/268666
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
1 file changed