[gtk+] wayland: Bump GTK_SHELL1 version to 2

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 01911b5ecd96e726335a7a18e27030a2304671b0
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Sep 18 23:49:44 2017 -0300

    wayland: Bump GTK_SHELL1 version to 2
    
    Otherwise, we can't negotiate the latest version with the
    compositor, making the compositor use v1 of the protocol and
    pretty much ignoring all the edge constraints work.

 gdk/wayland/gdkdisplay-wayland.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gdk/wayland/gdkdisplay-wayland.c b/gdk/wayland/gdkdisplay-wayland.c
index 8f8c1dd..30f4d43 100644
--- a/gdk/wayland/gdkdisplay-wayland.c
+++ b/gdk/wayland/gdkdisplay-wayland.c
@@ -85,6 +85,8 @@
 
 #define MIN_SYSTEM_BELL_DELAY_MS 20
 
+#define GTK_SHELL1_VERSION       2
+
 static void _gdk_wayland_display_load_cursor_theme (GdkWaylandDisplay *display_wayland);
 
 G_DEFINE_TYPE (GdkWaylandDisplay, gdk_wayland_display, GDK_TYPE_DISPLAY)
@@ -374,7 +376,7 @@ gdk_registry_handle_global (void               *data,
       display_wayland->gtk_shell =
         wl_registry_bind(display_wayland->wl_registry, id,
                          &gtk_shell1_interface,
-                         1);
+                         GTK_SHELL1_VERSION);
       _gdk_wayland_screen_set_has_gtk_shell (display_wayland->screen);
       display_wayland->gtk_shell_version = version;
     }