Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/gconf_titlebar_listener.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_GCONF_TITLEBAR_LISTENER_H_
-#define CHROME_BROWSER_UI_GTK_GCONF_TITLEBAR_LISTENER_H_
-
-#include <gconf/gconf-client.h>
-#include <gtk/gtk.h>
-
-#include <set>
-#include <string>
-
-#include "base/basictypes.h"
-#include "ui/base/gtk/gtk_signal.h"
-
-class BrowserTitlebar;
-template <typename T> struct DefaultSingletonTraits;
-
-// On GNOME desktops, subscribes to the gconf key which controlls button order.
-// Everywhere else, SetTiltebarButtons() just calls back into BrowserTitlebar
-// with the default ordering.
-//
-// Meant to be used as a Singleton through base/memory/singleton.h's interface.
-class GConfTitlebarListener {
- public:
-  // Returns the singleton instance.
-  static GConfTitlebarListener* GetInstance();
-
-  // Sets the current titlebar button order. On GNOME desktops, also subscribes
-  // to further notifications when this changes.
-  void SetTitlebarButtons(BrowserTitlebar* titlebar);
-
-  // Removes |titlebar| from the list of objects observing button order change
-  // notifications.
-  void RemoveObserver(BrowserTitlebar* titlebar);
-
- protected:
-  ~GConfTitlebarListener();
-
- private:
-  // Private constructor to enforce singleton access.
-  GConfTitlebarListener();
-
-  // Called whenever the metacity key changes.
-  CHROMEG_CALLBACK_2(GConfTitlebarListener, void, OnChangeNotification,
-                     GConfClient*, guint, GConfEntry*);
-
-  // Checks |error|. On error, prints out a message and closes the connection
-  // to GConf and reverts to default mode.
-  bool HandleGError(GError* error, const char* key);
-
-  // Parses the return data structure from GConf, falling back to the default
-  // value on any error.
-  void ParseAndStoreValue(GConfValue* gconf_value);
-
-  // Pointer to our gconf context. NULL if we aren't on a desktop that uses
-  // gconf.
-  GConfClient* client_;
-
-  // The current button ordering as heard from gconf.
-  std::string current_value_;
-
-  // BrowserTitlebar objects which have subscribed to updates.
-  std::set<BrowserTitlebar*> titlebars_;
-
-  friend struct DefaultSingletonTraits<GConfTitlebarListener>;
-  DISALLOW_COPY_AND_ASSIGN(GConfTitlebarListener);
-};
-
-#endif  // CHROME_BROWSER_UI_GTK_GCONF_TITLEBAR_LISTENER_H_