In WK2 making the window > 2000 pixels wide (or high) crashes because we are trying to switch the root layer to be tiled. Since it has no superlayer, there is no way to reattach it, so we crash.
In radar 8751147
Created attachment 79382 [details]
Comment on attachment 79382 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=79382&action=review
> + Added a hostingLayer as the parent of the existing drawingLayer.
> + The hostingLayer is now the root which is passed to the
> + remote context. It never changes except to track the size
> + of the window. The drawingLayer is now a child of the
> + hostingLayer, which allow it to switch between tiled and
> + non-tiled.
> + I also not give back accurate settings for debug borders and
Committed r76143: <http://trac.webkit.org/changeset/76143>
http://trac.webkit.org/changeset/76143 might have broken SnowLeopard Intel Release (Tests)