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

content/browser/renderer_host/gtk_window_utils.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 "content/browser/renderer_host/gtk_window_utils.h"
 
 #include <gdk/gdkx.h>
 #include <gtk/gtk.h>
 
+#include "ui/base/gtk/gtk_compat.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScreenInfo.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/x11/WebScreenInfoFactory.h"
 
 namespace content {
 
 void GetScreenInfoFromNativeWindow(
     GdkWindow* gdk_window, WebKit::WebScreenInfo* results) {
-  GdkScreen* screen = gdk_drawable_get_screen(gdk_window);
+  GdkScreen* screen = gdk_window_get_screen(gdk_window);
   *results = WebKit::WebScreenInfoFactory::screenInfo(
       gdk_x11_drawable_get_xdisplay(gdk_window),
       gdk_x11_screen_get_screen_number(screen));
 
   // TODO(tony): We should move this code into WebScreenInfoFactory.
   int monitor_number = gdk_screen_get_monitor_at_window(screen, gdk_window);
   GdkRectangle monitor_rect;
   gdk_screen_get_monitor_geometry(screen, monitor_number, &monitor_rect);
   results->rect = WebKit::WebRect(monitor_rect.x, monitor_rect.y,
                                   monitor_rect.width, monitor_rect.height);
   // TODO(tony): Should we query _NET_WORKAREA to get the workarea?
   results->availableRect = results->rect;
 }
 
 }  // namespace content