Remove last dependencies on ui/base from ui/gfx

ui/gfx/gtk_preserve_window.h

 // 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.
 
 #ifndef UI_GFX_GTK_PRESERVE_WINDOW_H_
 #define UI_GFX_GTK_PRESERVE_WINDOW_H_
 
 #include <atk/atk.h>
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
@@ skipping 28 matching lines @@
 
 struct _GtkPreserveWindow {
   // Parent class.
   GtkFixed fixed;
 };
 
 struct _GtkPreserveWindowClass {
   GtkFixedClass parent_class;
 };
 
-UI_EXPORT GType gtk_preserve_window_get_type() G_GNUC_CONST;
-UI_EXPORT GtkWidget* gtk_preserve_window_new();
+GFX_EXPORT GType gtk_preserve_window_get_type() G_GNUC_CONST;
+GFX_EXPORT GtkWidget* gtk_preserve_window_new();
 
 // Whether or not we should preserve associated windows as the widget
 // is realized or unrealized.
-UI_EXPORT gboolean gtk_preserve_window_get_preserve(GtkPreserveWindow* widget);
-UI_EXPORT void gtk_preserve_window_set_preserve(GtkPreserveWindow* widget,
-                                                gboolean value);
+GFX_EXPORT gboolean gtk_preserve_window_get_preserve(GtkPreserveWindow* widget);
+GFX_EXPORT void gtk_preserve_window_set_preserve(GtkPreserveWindow* widget,
+                                                 gboolean value);
 
 // Whether or not someone else will gdk_window_resize the GdkWindow associated
 // with this widget (needed by the GPU process to synchronize resizing
 // with swapped between front and back buffer).
-UI_EXPORT void gtk_preserve_window_delegate_resize(GtkPreserveWindow* widget,
-                                                   gboolean delegate);
+GFX_EXPORT void gtk_preserve_window_delegate_resize(GtkPreserveWindow* widget,
+                                                    gboolean delegate);
 
 // Provide a function to return an AtkObject* when calls to get_accessible
 // are made on this widget. The parameter |userdata| will be passed to the
 // factory function.
-UI_EXPORT void gtk_preserve_window_set_accessible_factory(
+GFX_EXPORT void gtk_preserve_window_set_accessible_factory(
     GtkPreserveWindow* widget,
     AtkObject* (*factory)(void* userdata),
     gpointer userdata);
 
 G_END_DECLS
 
 #endif  // UI_GFX_GTK_PRESERVE_WINDOW_H_