gdkcairocontext*.h: Include cairo.h consistently
authorChun-wei Fan <fanchunwei@src.gnome.org>
Tue, 15 May 2018 05:27:10 +0000 (13:27 +0800)
committerChun-wei Fan <fanchunwei@src.gnome.org>
Tue, 15 May 2018 05:49:45 +0000 (13:49 +0800)
commit04b4c077f641c59f030eef9c6b0a4d27ebbe27a0
treedb472e6dc3bf335c43da881bc9852aca0e4086b5
parentd7aa13a8e6502ef9ab85c673162fec6364e8239a
gdkcairocontext*.h: Include cairo.h consistently

The other sources include cairo.h by just using #include <cairo.h>, so
do likewise here.
gdk/gdkcairocontext.h
gdk/gdkcairocontextprivate.h