[cairo] Regarding performance and memory usage of the recording surface

[Chris Wilson]

I didn't read these the first time around because they were HTML emails
with no text, i.e. they appeared blank in both by MUA and in the archives.

After finally grasping what your issue was and deciding that you did
indeed have a genuine use-case and that the recording-surface was indeed
meant to function as you desired in this case, I fixed the image surface
and helpers to "do the right thing".
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre