[mus+ash] Removes WmWindow from ash (app_list, frame, metrics, session, system, wallpaper)

chrome/browser/chromeos/login/users/wallpaper/wallpaper_window_state_manager.cc

 // Copyright 2017 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 "chrome/browser/chromeos/login/users/wallpaper/wallpaper_window_state_manager.h"
 
 #include "ash/shell.h"
 #include "ash/wm/mru_window_tracker.h"
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_util.h"
-#include "ash/wm_window.h"
 #include "chrome/browser/ui/ash/ash_util.h"
 #include "ui/aura/window.h"
 
 namespace chromeos {
 
 // static
 WallpaperWindowStateManager* g_window_state_manager = nullptr;
 
 // static
 void WallpaperWindowStateManager::MinimizeInactiveWindows(
@@ skipping 107 matching lines @@
   // If user interacted with the |window| while wallpaper picker is opening,
   // removes the |window| from observed list.
   for (auto iter = user_id_hash_window_list_map_.begin();
        iter != user_id_hash_window_list_map_.end(); ++iter) {
     iter->second.erase(window);
   }
   window->RemoveObserver(this);
 }
 
 }  // namespace chromeos