[webkit-reviews] review requested: [Bug 40380] [Qt] When a layer is really opaque (ie has a background color that has 255 alpha) we should fill the layer with that color to tell Qt that the pixemap has no alpha. : [Attachment 58276] Adding support for setBackgroundColor/clearBackground color and using it in QGraphicsLayer to pre-fill the pixmap cache.

[bugzilla-daemon at webkit.org]

Sam Magnuson <smagnuson at netflix.com> has asked	for review:
Bug 40380: [Qt] When a layer is really opaque (ie has a background color that
has 255 alpha) we should fill the layer with that color to tell Qt that the
pixemap has no alpha.
https://bugs.webkit.org/show_bug.cgi?id=40380

Attachment 58276: Adding support for setBackgroundColor/clearBackground color
and using it in QGraphicsLayer to pre-fill the pixmap cache.
https://bugs.webkit.org/attachment.cgi?id=58276&action=review