GTK: Create the start of a compatibility header wrapping deprecated methods.

ui/gfx/gtk_native_view_id_manager.cc

 // Copyright (c) 2011 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 "ui/gfx/gtk_native_view_id_manager.h"
 
 #include <gtk/gtk.h>
 #include <gdk/gdkx.h>
 
 #include "base/logging.h"
 #include "base/rand_util.h"
+#include "ui/base/gtk/gtk_compat.h"
 #include "ui/gfx/gtk_preserve_window.h"
 
 // -----------------------------------------------------------------------------
 // Bounce functions for GTK to callback into a C++ object...
 
 void OnRealize(gfx::NativeView widget, void* arg) {
   GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg);
   manager->OnRealize(widget);
 }
 
@@ skipping 37 matching lines @@
   if (i != native_view_to_id_.end())
     return i->second;
 
   gfx::NativeViewId new_id =
       static_cast<gfx::NativeViewId>(base::RandUint64());
   while (id_to_info_.find(new_id) != id_to_info_.end())
     new_id = static_cast<gfx::NativeViewId>(base::RandUint64());
 
   NativeViewInfo info;
   info.widget = widget;
-  if (GTK_WIDGET_REALIZED(widget)) {
+  if (gtk_widget_get_realized(widget)) {
     GdkWindow *gdk_window = widget->window;
     DCHECK(gdk_window);
     info.x_window_id = GDK_WINDOW_XID(gdk_window);
   }
 
   native_view_to_id_[widget] = new_id;
   id_to_info_[new_id] = info;
 
   g_signal_connect(widget, "realize", G_CALLBACK(::OnRealize), this);
   g_signal_connect(widget, "unrealize", G_CALLBACK(::OnUnrealize), this);
@@ skipping 161 matching lines @@
 
     if (k != perm_xid_to_info_.end())
       k->second.widget = NULL;
   }
 
   native_view_to_id_.erase(i);
   id_to_info_.erase(j);
 }
 
 // -----------------------------------------------------------------------------