chromeos: converts WindowState to aura::Window

ash/wm/workspace/workspace_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/workspace/workspace_layout_manager.h"
 
 #include <algorithm>
 
 #include "ash/keyboard/keyboard_observer_register.h"
 #include "ash/public/cpp/shell_window_ids.h"
@@ skipping 383 matching lines @@
 
 void WorkspaceLayoutManager::UpdateAlwaysOnTop(aura::Window* window_on_top) {
   // Changing always on top state may change window's parent. Iterate on a copy
   // of |windows_| to avoid invalidating an iterator. Since both workspace and
   // always_on_top containers' layouts are managed by this class all the
   // appropriate windows will be included in the iteration.
   WindowSet windows(windows_);
   for (aura::Window* window : windows) {
     wm::WindowState* window_state = wm::GetWindowState(window);
     if (window_on_top)
-      window_state->DisableAlwaysOnTop(WmWindow::Get(window_on_top));
+      window_state->DisableAlwaysOnTop(window_on_top);
     else
       window_state->RestoreAlwaysOnTop();
   }
 }
 
 }  // namespace ash