[webkit-reviews] review requested: [Bug 140474] Add a way to collect scrolling performance data (viewport tile coverage) with UI-side compositing : [Attachment 244775] Patch

[bugzilla-daemon at webkit.org]

Simon Fraser (smfr) <simon.fraser at apple.com> has asked	for review:
Bug 140474: Add a way to collect scrolling performance data (viewport tile
coverage) with UI-side compositing
https://bugs.webkit.org/show_bug.cgi?id=140474

Attachment 244775: Patch

https://bugs.webkit.org/attachment.cgi?id=244775&action=review