[Cairo] Accelerated canvas should fall back to uunaccelrated canvas on creation failure
Created attachment 259952 [details] Patch
Cairo-gl backed surface might fail to be created with large dimensions, e.g., 50x32000, depending on the gl implementations. In case of Mac port, ImageBufferCG falls back to a software surface when it fails to create IOSurface, an accelerated surface. Though the unaccelerated surface could be slower, it would be better to create a working surface than nothing.
Comment on attachment 259952 [details] Patch r=me.
Comment on attachment 259952 [details] Patch Clearing flags on attachment: 259952 Committed r188968: <http://trac.webkit.org/changeset/188968>
All reviewed patches have been landed. Closing bug.