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

ash/wallpaper/wallpaper_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/wallpaper/wallpaper_controller.h"
 
 #include <string>
 #include <utility>
 
 #include "ash/ash_switches.h"
@@ skipping 309 matching lines @@
 
 bool WallpaperController::ReparentWallpaper(int container) {
   bool moved = false;
   for (auto* root_window_controller : Shell::GetAllRootWindowControllers()) {
     // In the steady state (no animation playing) the wallpaper widget
     // controller exists in the RootWindowController.
     WallpaperWidgetController* wallpaper_widget_controller =
         root_window_controller->wallpaper_widget_controller();
     if (wallpaper_widget_controller) {
       moved |= wallpaper_widget_controller->Reparent(
-          root_window_controller->GetWindow(), container);
+          root_window_controller->GetRootWindow(), container);
     }
     // During wallpaper show animations the controller lives in
     // AnimatingWallpaperWidgetController owned by RootWindowController.
     // NOTE: If an image load happens during a wallpaper show animation there
     // can temporarily be two wallpaper widgets. We must reparent both of them,
     // one above and one here.
     WallpaperWidgetController* animating_controller =
         root_window_controller->animating_wallpaper_widget_controller()
             ? root_window_controller->animating_wallpaper_widget_controller()
                   ->GetController(false)
             : nullptr;
     if (animating_controller) {
       moved |= animating_controller->Reparent(
-          root_window_controller->GetWindow(), container);
+          root_window_controller->GetRootWindow(), container);
     }
   }
   return moved;
 }
 
 int WallpaperController::GetWallpaperContainerId(bool locked) {
   return locked ? kShellWindowId_LockScreenWallpaperContainer
                 : kShellWindowId_WallpaperContainer;
 }
 
@@ skipping 69 matching lines @@
               base::TimeDelta::FromMilliseconds(kCompositorLockTimeoutMs));
     }
   }
 }
 
 void WallpaperController::CompositorLockTimedOut() {
   compositor_lock_.reset();
 }
 
 }  // namespace ash