[webkit-reviews] review requested: [Bug 53715] [chromium] Import PaintAggregator and introduce WebPaintSurface API : [Attachment 81117] v2 patch

[bugzilla-daemon at webkit.org]

Darin Fisher (:fishd, Google) <fishd at chromium.org> has asked  for review:
Bug 53715: [chromium] Import PaintAggregator and introduce WebPaintSurface API
https://bugs.webkit.org/show_bug.cgi?id=53715

Attachment 81117: v2 patch
https://bugs.webkit.org/attachment.cgi?id=81117&action=review