[mus+ash] Removes WmWindow from ash/shelf and ash/shell

ash/wm/screen_pinning_controller.cc

 // Copyright 2016 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/screen_pinning_controller.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shell.h"
 #include "ash/shell_port.h"
 #include "ash/window_user_data.h"
 #include "ash/wm/container_finder.h"
 #include "ash/wm/window_dimmer.h"
 #include "ash/wm/window_state.h"
-#include "ash/wm_window.h"
 #include "base/auto_reset.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_observer.h"
 #include "ui/wm/core/window_util.h"
 
 namespace ash {
 namespace {
 
@@ skipping 301 matching lines @@
     return;
 
   WindowDimmer* window_dimmer = window_dimmers_->Get(container);
   if (window_dimmer) {
     base::AutoReset<bool> auto_reset(&in_restacking_, true);
     container->StackChildAtBottom(window_dimmer->window());
   }
 }
 
 }  // namespace ash