Fix empty stroked oval handling in GrRenderTargetContext::drawOval

The fix in https://skia-review.googlesource.com/c/skia/+/138932 (Don't reject stroked empty rrects in GPU backend) revealed a similar bug in oval drawing.

Bug: skia:8115
Change-Id: I2f864daf2ccabdcdbb49b242cc5ce3682fe7b12a
Reviewed-on: https://skia-review.googlesource.com/139120
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed