Delete the GTK+ port of Chrome.

chrome/browser/ui/gtk/panels/display_settings_provider_gtk.cc

-// 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.
-
-#include "chrome/browser/ui/panels/display_settings_provider.h"
-#include "ui/base/work_area_watcher_observer.h"
-#include "ui/base/x/work_area_watcher_x.h"
-
-namespace {
-
-class DisplaySettingsProviderGtk : public DisplaySettingsProvider,
-                                   public ui::WorkAreaWatcherObserver {
- public:
-  DisplaySettingsProviderGtk();
-  virtual ~DisplaySettingsProviderGtk();
-
- protected:
-  // Overridden from ui::WorkAreaWatcherObserver:
-  virtual void WorkAreaChanged() OVERRIDE;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DisplaySettingsProviderGtk);
-};
-
-DisplaySettingsProviderGtk::DisplaySettingsProviderGtk() {
-  ui::WorkAreaWatcherX::AddObserver(this);
-}
-
-DisplaySettingsProviderGtk::~DisplaySettingsProviderGtk() {
-  ui::WorkAreaWatcherX::RemoveObserver(this);
-}
-
-void DisplaySettingsProviderGtk::WorkAreaChanged() {
-  OnDisplaySettingsChanged();
-}
-
-}  // namespace
-
-// static
-DisplaySettingsProvider* DisplaySettingsProvider::Create() {
-  return new DisplaySettingsProviderGtk();
-}