tree cba85737bedd904784deecea364f9cc9852bf5b6
parent 84d36cdb60adc397d0d18cca00115718bcbe9de7
author Brian Salomon <bsalomon@google.com> 1555702648 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1555704852 +0000

SkClipStack::isRRect succeeds if stack is  an intersection of rects.

This helps enable optimizations that rely on the entire clip reducing
to a single rectangle, such as converting a drawRect to a clear.

Bug: b/122296071

Change-Id: I1fea4565644280d57610f8585b76babb557301d8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209382
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>