[webkit-reviews] review canceled: [Bug 62181] Incorrect compositing overlap test : [Attachment 96477] Patch

[bugzilla-daemon at webkit.org]

Adrienne Walker <enne at google.com> has canceled Adrienne Walker
<enne at google.com>'s request for review:
Bug 62181: Incorrect compositing overlap test
https://bugs.webkit.org/show_bug.cgi?id=62181

Attachment 96477: Patch
https://bugs.webkit.org/attachment.cgi?id=96477&action=review

------- Additional Comments from Adrienne Walker <enne at google.com>
Taking off review, because I want to add a test case first.  I'm just putting
this up to get any initial comments.  This passes the test case above, fixes
the Chromium bug, and passes all the compositing layout tests (for Chromium).

smfr: You were quite right that updating the backing was tricky.  Instead of
using larger bounds in the overlap map, I thought it would be more direct to
just add more layers to the overlap map.