Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/back_forward_button_gtk.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 CHROME_BROWSER_UI_GTK_BACK_FORWARD_BUTTON_GTK_H_
-#define CHROME_BROWSER_UI_GTK_BACK_FORWARD_BUTTON_GTK_H_
-
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/ui/gtk/custom_button.h"
-#include "chrome/browser/ui/gtk/menu_gtk.h"
-#include "ui/base/gtk/gtk_signal.h"
-
-class BackForwardMenuModel;
-class Browser;
-
-typedef struct _GtkWidget GtkWidget;
-
-// When clicked, these buttons will navigate forward or backward. When
-// pressed and held, they show a dropdown menu of recent web sites.
-class BackForwardButtonGtk : MenuGtk::Delegate {
- public:
-  BackForwardButtonGtk(Browser* browser, bool is_forward);
-  virtual ~BackForwardButtonGtk();
-
-  // MenuGtk::Delegate implementation.
-  virtual void StoppedShowing() OVERRIDE;
-  virtual bool AlwaysShowIconForCmd(int command_id) const OVERRIDE;
-
-  GtkWidget* widget() { return button_->widget(); }
-
- private:
-  // Executes the browser command.
-  CHROMEGTK_CALLBACK_0(BackForwardButtonGtk, void, OnClick);
-
-  // Starts a timer to show the dropdown menu.
-  CHROMEGTK_CALLBACK_1(BackForwardButtonGtk, gboolean, OnButtonPress,
-                       GdkEventButton*);
-
-  // If there is a timer to show the dropdown menu, and the mouse has moved
-  // sufficiently down the screen, cancel the timer and immediately show the
-  // menu.
-  CHROMEGTK_CALLBACK_1(BackForwardButtonGtk, gboolean, OnMouseMove,
-                       GdkEventMotion*);
-
-  // Shows the dropdown menu.
-  void ShowBackForwardMenu(int button, guint32 event_time);
-
-  // The menu gets reset every time it is shown.
-  scoped_ptr<MenuGtk> menu_;
-
-  scoped_ptr<CustomDrawButton> button_;
-
-  // The browser to which we will send commands.
-  Browser* browser_;
-
-  // Whether this button is a forward button.
-  bool is_forward_;
-
-  // The dropdown menu model.
-  scoped_ptr<BackForwardMenuModel> menu_model_;
-
-  // The y position of the last mouse down event.
-  int y_position_of_last_press_;
-
-  base::WeakPtrFactory<BackForwardButtonGtk> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(BackForwardButtonGtk);
-};
-
-#endif  // CHROME_BROWSER_UI_GTK_BACK_FORWARD_BUTTON_GTK_H_