When you reload this page in a WebKit2 window, the page will flash to white after to top button bar finishes it's roll down animation
The problem is that after that animation, the page switches out of compositing mode momentarily and the change in renderers causes a flash
When switching out of compositing mode, the new ChunkedUpdateDrawingAreaProxy is getting created with the current page size. When the setSize() call is subsequently made, the sizeDidChange() call is not made (which does the initial render of the page) because the old size and new size are the same. The solution is to skip the setting of the size in the ctor and let it go through a size change sequence.
Created attachment 80389 [details]
Comment on attachment 80389 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=80389&action=review
> + is to skip the setting of the size in the ctor and let it go through a size
Committed r76962: <http://trac.webkit.org/changeset/76962>