GTK: Port RenderWidgetHostViewGtk to latest GTK

ui/base/gtk/gtk_compat.h

 // 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.
 
 #ifndef UI_BASE_GTK_GTK_COMPAT_H_
 #define UI_BASE_GTK_GTK_COMPAT_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
 // Google Chrome must depend on GTK 2.18, at least until the next LTS drops
 // (and we might have to extend which version of GTK we want to target due to
 // RHEL). To make our porting job for GTK3 easier, we define all the methods
 // that replace deprecated APIs in this file and then include it everywhere.
 //
 // This file is organized first by version, and then with each version,
 // alphabetically by method.
 
 #if !GTK_CHECK_VERSION(2, 20, 0)
 inline gboolean gtk_widget_get_realized(GtkWidget* widget) {
   return GTK_WIDGET_REALIZED(widget);
 }
 
 inline gboolean gtk_widget_is_toplevel(GtkWidget* widget) {
   return GTK_WIDGET_TOPLEVEL(widget);
 }
 #endif
 
+#if !GTK_CHECK_VERSION(2, 18, 0)
+inline gint gdk_visual_get_depth(GdkVisual* visual) {

[Elliot Glaysher, 2011/11/28 18:35:42]

Please keep the GTK_CHECK_VERSION sections in order. 18 should come before 20.

[robert.bradford, 2011/11/29 12:02:49]

Done.

+  return visual->depth;
+}
+#endif
+
 #if !GTK_CHECK_VERSION(2, 24, 0)
 inline void gdk_pixmap_get_size(GdkPixmap* pixmap, gint* width, gint* height) {
   gdk_drawable_get_size(GDK_DRAWABLE(pixmap), width, height);
 }
 
 inline GdkScreen* gdk_window_get_screen(GdkWindow* window) {
   return gdk_drawable_get_screen(GDK_DRAWABLE(window));
 }
+
+inline int gdk_window_get_width(GdkWindow* window)

[Elliot Glaysher, 2011/11/28 18:35:42]

Remove whitespace and match bracing style. add default values for width, height.
also the alphabetical order for these functions should be:

gdk_window_get_height
gdk_window_get_screen
gdk_window_get_width

[robert.bradford, 2011/11/29 12:02:49]

Done.

+{
+  int width;
+
+  gdk_drawable_get_size(GDK_DRAWABLE(window), &width, NULL);
+
+  return width;
+}
+
+inline int gdk_window_get_height(GdkWindow* window)
+{
+  int height;
+
+  gdk_drawable_get_size(GDK_DRAWABLE(window), NULL, &height);
+
+  return height;
+}
+
 #endif
 
 #endif  // UI_BASE_GTK_GTK_COMPAT_H_