[webkit-reviews] review requested: [Bug 76015] [chromium] Use region reported painted opaque for draw culling : [Attachment 122822] Patch

[bugzilla-daemon at webkit.org]

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

Attachment 122822: Patch
https://bugs.webkit.org/attachment.cgi?id=122822&action=review

------- Additional Comments from Dana Jansens <danakj at chromium.org>
- Store an opaque rect in each tile. Constructed from the opaque rect given
back from paints.
- CCDrawQuad has an opaqueRect which is typically empty but can be changed by
subclass. This is used when opacity == 1 but isOpaque isn't true
- Each tile's opaque rect is passed to the CCTileDrawQuad, and set on the
CCDrawQuad for the above case.