[test] Increase size of extend-reflect test to see that pattern repeats

test/Makefile.am

@@ -31,6 +31,7 @@ dash-state			\
 degenerate-path			\
 device-offset			\
 device-offset-positive		\
+extend-pad			\
 extend-reflect			\
 fill-and-stroke			\
 fill-and-stroke-alpha		\

test/extend-reflect.c

@@ -2,7 +2,7 @@
 #include "cairo-test.h"
 #include <stdio.h>
 
-#define SIZE 400
+#define SIZE 600
 const char	png_filename[]	= "romedalen.png";
 
 static cairo_test_draw_function_t draw;