[mus+ash] Removes WmWindow from window_positioning_utils

ash/accelerators/accelerator_controller.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/accelerators/accelerator_controller.h"
 
 #include <utility>
 
 #include "ash/accelerators/accelerator_commands.h"
 #include "ash/accelerators/accelerator_controller_delegate.h"
@@ skipping 439 matching lines @@
   base::RecordAction(base::UserMetricsAction("Accel_Toggle_Minimized_Minus"));
   accelerators::ToggleMinimized();
 }
 
 bool CanHandlePositionCenter() {
   return wm::GetActiveWindow() != nullptr;
 }
 
 void HandlePositionCenter() {
   base::RecordAction(UserMetricsAction("Accel_Window_Position_Center"));
-  wm::CenterWindow(WmWindow::Get(wm::GetActiveWindow()));
+  wm::CenterWindow(wm::GetActiveWindow());
 }
 
 void HandleShowImeMenuBubble() {
   base::RecordAction(UserMetricsAction("Accel_Show_Ime_Menu_Bubble"));
 
   StatusAreaWidget* status_area_widget =
       WmShelf::ForWindow(Shell::GetPrimaryRootWindow())->GetStatusAreaWidget();
   if (status_area_widget) {
     ImeMenuTray* ime_menu_tray = status_area_widget->ime_menu_tray();
     if (ime_menu_tray && ime_menu_tray->visible() &&
@@ skipping 840 matching lines @@
       data->uma_histogram_name, data->notification_message_id,
       data->old_shortcut_id, data->new_shortcut_id);
 
   if (!data->deprecated_enabled)
     return AcceleratorProcessingStatus::STOP;
 
   return AcceleratorProcessingStatus::PROCEED;
 }
 
 }  // namespace ash