[webkit-reviews] review requested: [Bug 73350] [chromium] Allow scrolling non-root layers in the compositor thread : [Attachment 146640] Patch

[bugzilla-daemon at webkit.org]

Sami Kyostila <skyostil at google.com> has asked  for review:
Bug 73350: [chromium] Allow scrolling non-root layers in the compositor thread
https://bugs.webkit.org/show_bug.cgi?id=73350

Attachment 146640: Patch
https://bugs.webkit.org/attachment.cgi?id=146640&action=review

------- Additional Comments from Sami Kyostila <skyostil at google.com>
- Don't crash if the root layer loses its render surface after the most recent
render.
- Fixed a bug in scrollBy() that always scheduled a commit when page scale
delta != 1.
- Renamed ScrollFailed to ScrollOnMainThread to make its purpose clearer.
- Added a test to make sure non-scrollable layers don't block scrolling their
ancestors.