Lock Rotation on user settings changes

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 "ash/accelerators/accelerator_controller.h"
@@ skipping 673 matching lines @@
   RemovePostTargetHandler(toplevel_window_event_handler_.get());
   RemovePreTargetHandler(system_gesture_filter_.get());
   RemovePreTargetHandler(keyboard_metrics_filter_.get());
   RemovePreTargetHandler(mouse_cursor_filter_.get());
 
   // TooltipController is deleted with the Shell so removing its references.
   RemovePreTargetHandler(tooltip_controller_.get());
 
   // Destroy maximize window manager early on since it has some observers which
   // need to be removed.
+  maximize_mode_window_manager_.reset();
   maximize_mode_controller_.reset();
-  maximize_mode_window_manager_.reset();
 
   // AppList needs to be released before shelf layout manager, which is
   // destroyed with shelf container in the loop below. However, app list
   // container is now on top of shelf container and released after it.
   // TODO(xiyuan): Move it back when app list container is no longer needed.
   app_list_controller_.reset();
 
 #if defined(OS_CHROMEOS)
   // Destroy the LastWindowClosedLogoutReminder before the
   // LogoutConfirmationController.
@@ skipping 443 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Shell, aura::client::ActivationChangeObserver implementation:
 
 void Shell::OnWindowActivated(aura::Window* gained_active,
                               aura::Window* lost_active) {
   if (gained_active)
     target_root_window_ = gained_active->GetRootWindow();
 }
 
 }  // namespace ash