[webkit-reviews] review requested: [Bug 77498] [Chromium] Occlusion tracking with CSS filters : [Attachment 126887] Patch

[bugzilla-daemon at webkit.org]

Dana Jansens <danakj at chromium.org> has asked  for review:
Bug 77498: [Chromium] Occlusion tracking with CSS filters
https://bugs.webkit.org/show_bug.cgi?id=77498

Attachment 126887: Patch
https://bugs.webkit.org/attachment.cgi?id=126887&action=review

------- Additional Comments from Dana Jansens <danakj at chromium.org>
This catches the interaction between the new impl filters and occlusion
tracking during paint.

The pieces most relevant to reviewers are, I think:

@senorblanco The filters part of this (especially which filters can change
alpha values in pixels and which can move color values from one pixel to
another).

@jamesr The remaining changes, which are to use knowledge of filters on
surfaces to affect occlusion.

Thanks!