Gtk3: Silence deprecation warnings in //remoting

remoting/host/disconnect_window_linux.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <gtk/gtk.h>
 #include <math.h>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 184 matching lines @@
 
   // Handle mouse events to allow the user to drag the window around.
   gtk_widget_set_events(disconnect_window_, GDK_BUTTON_PRESS_MASK);
   g_signal_connect(disconnect_window_, "button-press-event",
                    G_CALLBACK(OnButtonPressThunk), this);
 
   // All magic numbers taken from screen shots provided by UX.
   // The alignment sets narrow margins at the top and bottom, compared with
   // left and right.  The left margin is made larger to accommodate the
   // window movement gripper.
+  G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
   GtkWidget* align = gtk_alignment_new(0, 0, 1, 1);
   gtk_alignment_set_padding(GTK_ALIGNMENT(align), 8, 8, 24, 12);
+  G_GNUC_END_IGNORE_DEPRECATIONS;
   gtk_container_add(GTK_CONTAINER(window), align);
 
 #if GTK_MAJOR_VERSION == 2
   GtkWidget* button_row = gtk_hbox_new(FALSE, 12);
 #else
   GtkWidget* button_row = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 12);
   gtk_box_set_homogeneous(GTK_BOX(button_row), FALSE);
 #endif
   gtk_container_add(GTK_CONTAINER(align), button_row);
 
@@ skipping 127 matching lines @@
 }
 
 }  // namespace
 
 // static
 std::unique_ptr<HostWindow> HostWindow::CreateDisconnectWindow() {
   return base::MakeUnique<DisconnectWindowGtk>();
 }
 
 }  // namespace remoting