[webkit-reviews] review requested: [Bug 76211] [chromium] Enable tracking opaque region in Skia graphics context, save it in LayerTextureUpdater : [Attachment 122308] Patch

[bugzilla-daemon at webkit.org]

Dana Jansens <danakj at chromium.org> has asked  for review:
Bug 76211: [chromium] Enable tracking opaque region in Skia graphics context,
save it in LayerTextureUpdater
https://bugs.webkit.org/show_bug.cgi?id=76211

Attachment 122308: Patch
https://bugs.webkit.org/attachment.cgi?id=122308&action=review

------- Additional Comments from Dana Jansens <danakj at chromium.org>
- Compute an opaque area in the Skia graphics context when the layer isn't
known to be fully opaque already.
- Save the opaque area given back by Skia's graphics context in the
LayerTextureUpdater.
- Pass on the opaque() flag equally to all LayerTextureUpdaters for possible
optimizations.