Delete the GTK+ port of Chrome.

ui/base/x/x11_util.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_BASE_X_X11_UTIL_H_
 #define UI_BASE_X_X11_UTIL_H_
 
 // This file declares utility functions for X11 (Linux only).
 //
 // These functions do not require the Xlib headers to be included (which is why
@@ skipping 11 matching lines @@
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/x/x11_types.h"
 
 typedef unsigned long Atom;
 typedef unsigned long XSharedMemoryId;  // ShmSeg in the X headers.
 typedef unsigned long Cursor;
 typedef struct _XcursorImage XcursorImage;
 typedef union _XEvent XEvent;
 
-#if defined(TOOLKIT_GTK)
-typedef struct _GdkDrawable GdkWindow;
-typedef struct _GtkWidget GtkWidget;
-typedef struct _GtkWindow GtkWindow;
-#endif
-
 namespace gfx {
 class Canvas;
 class Point;
 class Rect;
 }
 class SkBitmap;
 
 namespace ui {
 
 // These functions use the default display and this /must/ be called from
@@ skipping 64 matching lines @@
 UI_BASE_EXPORT ::Cursor CreateInvisibleCursor();
 
 // These functions do not cache their results --------------------------
 
 // Get the X window id for the default root window
 UI_BASE_EXPORT XID GetX11RootWindow();
 
 // Returns the user's current desktop.
 bool GetCurrentDesktop(int* desktop);
 
-#if defined(TOOLKIT_GTK)
-// Get the X window id for the given GTK widget.
-UI_BASE_EXPORT XID GetX11WindowFromGtkWidget(GtkWidget* widget);
-XID GetX11WindowFromGdkWindow(GdkWindow* window);
-
-// Get the GtkWindow* wrapping a given XID, if any.
-// Returns NULL if there isn't already a GtkWindow* wrapping this XID;
-// see gdk_window_foreign_new() etc. to wrap arbitrary XIDs.
-UI_BASE_EXPORT GtkWindow* GetGtkWindowFromX11Window(XID xid);
-
-// Get a Visual from the given widget. Since we don't include the Xlib
-// headers, this is returned as a void*.
-UI_BASE_EXPORT void* GetVisualFromGtkWidget(GtkWidget* widget);
-#endif  // defined(TOOLKIT_GTK)
-
 enum HideTitlebarWhenMaximized {
   SHOW_TITLEBAR_WHEN_MAXIMIZED = 0,
   HIDE_TITLEBAR_WHEN_MAXIMIZED = 1,
 };
 // Sets _GTK_HIDE_TITLEBAR_WHEN_MAXIMIZED on |window|.
 UI_BASE_EXPORT void SetHideTitlebarWhenMaximizedProperty(
     XID window,
     HideTitlebarWhenMaximized property);
 
 // Clears all regions of X11's default root window by filling black pixels.
@@ skipping 246 matching lines @@
  private:
   ::Cursor cursor_;
   XDisplay* display_;
 
   DISALLOW_COPY_AND_ASSIGN(XScopedCursor);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_X_X11_UTIL_H_