[cairo] XCB doc fixes + cairo_xcb_surface_set_drawable

[Chris Wilson]

On Fri,  2 Dec 2011 14:57:20 +0000, Keith Packard <keithp at keithp.com> wrote:
> Here's a set of patches that create XCB documentation and then add the
> missing cairo_xcb_surface_set_drawable function (which mirrors the
> cairo_xlib_surface_set_drawable function)

I skipped the first one since it doesn't seem to improve anything for
me, and pushed the rest. Thanks,
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre