[M87 cherry-pick] Stop overflow of windows rects in GrClipStack

Bug: skia:10989
Bug: b/174268976
Bug:1155178
Change-Id: Ida9c7e85de219fc25d2a6cdc1e998f53f1f2309f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/341006
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
6 files changed