[cairo] [PATCH] initialize clip_region when creating a new win32_surface

[Chris Wilson]

Excerpts from Shixin Zeng's message of Wed Aug 26 22:28:26 +0100 2009:
> 
> The current git HEAD fails to run any win32 cairo program, I've tested programs
> in GtkTests, all fail, even the following minimal program taken from FAQ on
> cairo website fails.

Thanks for the report. I have a patch for this among the many that are
queued up for a big push -- just as soon as I've resolved a couple of
outstanding issues.
-ickle