test: Increase surface size for get-path-extents

Whilst generating a glyph run from a string, any glyphs that are far
outside the surface (including a substantial guard region) are culled.
This affects the path extents. Workaround this by increasing the surface
size.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

test/get-path-extents.c

@@ -110,7 +110,7 @@ draw (cairo_t *cr, int width, int height)
     int              errors = 0;
 
     surface = cairo_surface_create_similar (cairo_get_group_target (cr),
-                                            CAIRO_CONTENT_COLOR, 100, 100);
+                                            CAIRO_CONTENT_COLOR, 1000, 1000);
     /* don't use cr accidentally */
     cr = NULL;
     cr2 = cairo_create (surface);