<attachment> icons are low-resolution when transformed or under page scale
Created attachment 247844 [details] Patch
Created attachment 247845 [details] Patch
<rdar://problem/20035480>
Created attachment 247876 [details] Patch
I don't think the Windows failure is my fault?
Created attachment 247913 [details] Patch
http://trac.webkit.org/changeset/181058