[webkit-reviews] review requested: [Bug 70634] Mark GraphicsLayers as opaque when possible : [Attachment 116768] notify backing about content changes in layers

[bugzilla-daemon at webkit.org]

Dana Jansens <danakj at chromium.org> has asked  for review:
Bug 70634: Mark GraphicsLayers as opaque when possible
https://bugs.webkit.org/show_bug.cgi?id=70634

Attachment 116768: notify backing about content changes in layers
https://bugs.webkit.org/attachment.cgi?id=116768&action=review