Remove PrepareForShutdown

ash/wm/root_window_layout_manager.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/wm/root_window_layout_manager.h"
 
 #include "ash/desktop_background/desktop_background_widget_controller.h"
 #include "ash/root_window_controller.h"
+#include "ash/root_window_settings.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/compositor/layer.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowLayoutManager, public:
 
 RootWindowLayoutManager::RootWindowLayoutManager(aura::Window* owner)
     : owner_(owner) {
 }
 
 RootWindowLayoutManager::~RootWindowLayoutManager() {
 }
 
 
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindowLayoutManager, aura::LayoutManager implementation:
 
 void RootWindowLayoutManager::OnWindowResized() {
+  // X event may arrive during shutdown.
+  if (GetRootWindowSettings(owner_->GetRootWindow())->shutdown)
+    return;
+
   gfx::Rect fullscreen_bounds =
       gfx::Rect(owner_->bounds().width(), owner_->bounds().height());
 
   // Resize both our immediate children (the containers-of-containers animated
   // by PowerButtonController) and their children (the actual containers).
   aura::Window::Windows::const_iterator i;
   for (i = owner_->children().begin(); i != owner_->children().end(); ++i) {
     (*i)->SetBounds(fullscreen_bounds);
     aura::Window::Windows::const_iterator j;
     for (j = (*i)->children().begin(); j != (*i)->children().end(); ++j)
@@ skipping 28 matching lines @@
 }
 
 void RootWindowLayoutManager::SetChildBounds(
     aura::Window* child,
     const gfx::Rect& requested_bounds) {
   SetChildBoundsDirect(child, requested_bounds);
 }
 
 }  // namespace internal
 }  // namespace ash