[Cairo] [PATCH] fix bugs in cairo_surface.c

[Carl Worth]

On Sep 29, graydon hoare wrote:
 > this fixes a couple of bugs in cairo_surface.c. the first hunk removes
 > a premature freeing (?!) the pixmap being created in
 > cairo_surface_create_similar_solid;

Oops. That now leaks the pixmap instead. Better would be to move the
XFreePixmap call to cairo_surface_destroy. Jamey's virtualization
patch includes a fix along those lines.

 > the second corrects the parameters passed in from
 > _cairo_surface_composite.

This is committed now. Thanks.

-Carl