Code review comment for lp://qastaging/~mir-team/mir/animated-cursors

291 === added file 'include/server/mir/frontend/buffer_stream.h'
Not sure this should be in the public api... but not sure the mf::Surface should be either.

Also though, we have a mc::BufferStream, could the new interface be unified with mc::BufferStream?
http://bazaar.launchpad.net/~mir-team/mir/animated-cursors/view/head:/src/include/server/mir/compositor/buffer_stream.h