Fix uninitialized read in simplifyRect()

Bug: oss-fuzz:21976
Change-Id: I635b9092bc4a30bb6a23ddcf1430a3ec06b9d598
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/287377
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
1 file changed