[webkit-reviews] review requested: [Bug 78315] REGRESSION(99539): Infinite repaint loop with SVGImage and deferred repaint timers : [Attachment 135825] Patch

[bugzilla-daemon at webkit.org]

Stephen Chenney <schenney at chromium.org> has asked  for review:
Bug 78315: REGRESSION(99539): Infinite repaint loop with SVGImage and deferred
repaint timers
https://bugs.webkit.org/show_bug.cgi?id=78315

Attachment 135825: Patch
https://bugs.webkit.org/attachment.cgi?id=135825&action=review

------- Additional Comments from Stephen Chenney <schenney at chromium.org>
This problem has been a nightmare. The fix as currently in trunk causes crashes
on MacOS for Chromium tests, and probably also causes flaky results on Release
builds. This patch addresses the remaining problems, and after tens of
thousands of test runs on a MacOS 10.6 machine there are no signs of crashes.
The previous crash rate was about 1 in 20. There may still be issues with the
repaint timer firing in the _next_ layout test, but I'll deal with that
separately.