[webkit-reviews] review requested: [Bug 76015] [chromium] Remember region painted opaque in layers and use for draw culling : [Attachment 121952] Patch

[bugzilla-daemon at webkit.org]

Dana Jansens <danakj at chromium.org> has asked  for review:
Bug 76015: [chromium] Remember region painted opaque in layers and use for draw
culling
https://bugs.webkit.org/show_bug.cgi?id=76015

Attachment 121952: Patch
https://bugs.webkit.org/attachment.cgi?id=121952&action=review

------- Additional Comments from Dana Jansens <danakj at chromium.org>
What do you think?

- Allows marking a subset of a layer as opaque and passes it thru to the impl
side.
- Integrates it into the CCDrawQuad::drawsOpaque() logic so it will be used for
the culling.
- Sets the rect after painting a contents layer with the opaque rect reported
back to us
  by skia stuff (it depends on https://bugs.webkit.org/show_bug.cgi?id=74352.)