Calling Frame::pageScale to zoom in renders the root contents at the new size so the text looks crisp. But the contents of accelerated compositing layers does not scale, so the contents image is scaled up and looks fuzzy. We need to tell each layer with contents to scale up their contents.
Created attachment 78730 [details] Patch This was previously reviewed by Simon Fraser and Kevin Decker.
Landed in changeset http://trac.webkit.org/changeset/75639