Remove the system menu display settings row

ash/shell.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 "ash/shell.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 39 matching lines @@
 #include "ash/frame/custom_frame_view_ash.h"
 #include "ash/high_contrast/high_contrast_controller.h"
 #include "ash/host/ash_window_tree_host_init_params.h"
 #include "ash/ime/input_method_event_handler.h"
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/magnifier/partial_magnification_controller.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell_init_params.h"
+#include "ash/system/chromeos/screen_layout_observer.h"
 #include "ash/utility/screenshot_controller.h"
 #include "ash/wm/ash_focus_rules.h"
 #include "ash/wm/ash_native_cursor_manager.h"
 #include "ash/wm/event_client_impl.h"
 #include "ash/wm/lock_state_controller.h"
 #include "ash/wm/overlay_event_filter.h"
 #include "ash/wm/overview/scoped_overview_animation_settings_factory_aura.h"
 #include "ash/wm/power_button_controller.h"
 #include "ash/wm/resize_shadow_controller.h"
 #include "ash/wm/screen_pinning_controller.h"
@@ skipping 511 matching lines @@
   RemovePostTargetHandler(toplevel_window_event_handler_.get());
   RemovePreTargetHandler(system_gesture_filter_.get());
   RemovePreTargetHandler(mouse_cursor_filter_.get());
   RemovePreTargetHandler(modality_filter_.get());
 
   // TooltipController is deleted with the Shell so removing its references.
   RemovePreTargetHandler(tooltip_controller_.get());
 
 #if defined(OS_CHROMEOS)
   screen_orientation_controller_.reset();
+  screen_layout_observer_.reset();
 #endif
 
 // Destroy the virtual keyboard controller before the maximize mode controller
 // since the latters destructor triggers events that the former is listening
 // to but no longer cares about.
 #if defined(OS_CHROMEOS)
   virtual_keyboard_controller_.reset();
 #endif
 
   // Destroy maximize mode controller early on since it has some observers which
@@ skipping 373 matching lines @@
   }
 
 #if defined(OS_CHROMEOS)
   power_event_observer_.reset(new PowerEventObserver());
   user_activity_notifier_.reset(
       new ui::UserActivityPowerManagerNotifier(user_activity_detector_.get()));
   video_activity_notifier_.reset(
       new VideoActivityNotifier(video_detector_.get()));
   bluetooth_notification_controller_.reset(new BluetoothNotificationController);
   screen_orientation_controller_.reset(new ScreenOrientationController());
+  screen_layout_observer_.reset(new ScreenLayoutObserver());
 #endif
   // The compositor thread and main message loop have to be running in
   // order to create mirror window. Run it after the main message loop
   // is started.
   display_manager_->CreateMirrorWindowAsyncIfAny();
 
   FOR_EACH_OBSERVER(ShellObserver, *wm_shell_->shell_observers(),
                     OnShellInitialized());
 
   user_metrics_recorder_->OnShellInitialized();
@@ skipping 65 matching lines @@
 std::unique_ptr<ui::EventTargetIterator> Shell::GetChildIterator() const {
   return std::unique_ptr<ui::EventTargetIterator>();
 }
 
 ui::EventTargeter* Shell::GetEventTargeter() {
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace ash