libweston: Migrate functions that operate on 'weston_view'

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
diff --git a/tests/surface-global-test.c b/tests/surface-global-test.c
index 548f552..2c9c807 100644
--- a/tests/surface-global-test.c
+++ b/tests/surface-global-test.c
@@ -29,6 +29,7 @@
 #include <stdint.h>
 
 #include <libweston/libweston.h>
+#include "libweston-internal.h"
 #include "compositor/weston.h"
 
 static void