[nautilus] tree-view-drag-dest: use GdkSeat operations

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit 38a811ca31847c17c7650abbffb8b2314f212e36
Author: Ernestas Kulik <ernestas kulik gmail com>
Date:   Sun Apr 17 20:20:55 2016 +0300

    tree-view-drag-dest: use GdkSeat operations
    
    Some GdkDisplay operations have been deprecated in GDK 3.20.
    
    This commit replaces the deprecated code with new GdkSeat
    operations.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=762235

 libnautilus-private/nautilus-tree-view-drag-dest.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/libnautilus-private/nautilus-tree-view-drag-dest.c 
b/libnautilus-private/nautilus-tree-view-drag-dest.c
index 5cadc32..97257dd 100644
--- a/libnautilus-private/nautilus-tree-view-drag-dest.c
+++ b/libnautilus-private/nautilus-tree-view-drag-dest.c
@@ -96,7 +96,8 @@ gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
 {
        GdkRectangle visible_rect;
        GtkAdjustment *vadjustment;
-       GdkDeviceManager *manager;
+       GdkDisplay *display;
+       GdkSeat *seat;
        GdkDevice *pointer;
        GdkWindow *window;
        int y;
@@ -106,8 +107,9 @@ gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
        window = gtk_tree_view_get_bin_window (tree_view);
        vadjustment = gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (tree_view));
 
-       manager = gdk_display_get_device_manager (gtk_widget_get_display (GTK_WIDGET (tree_view)));
-       pointer = gdk_device_manager_get_client_pointer (manager);
+       display = gtk_widget_get_display (GTK_WIDGET (tree_view));
+       seat = gdk_display_get_default_seat (display);
+       pointer = gdk_seat_get_pointer (seat);
        gdk_window_get_device_position (window, pointer,
                                        NULL, &y, NULL);