In order to support HiDPI, we'd better to bump cairo. (It will enable CAIRO_SURFACE_SET_DEVICE_SCALE)
Created attachment 259946 [details] Patch
Comment on attachment 259946 [details] Patch rs=me, GTK already uses this version
Comment on attachment 259946 [details] Patch Clearing flags on attachment: 259946 Committed r188992: <http://trac.webkit.org/changeset/188992>
All reviewed patches have been landed. Closing bug.