[mus+ash] Removes WmWindow from ash/wm/mru_window_tracker and overview mode

chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc

 // Copyright 2013 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/ui/ash/multi_user/multi_user_window_manager_chromeos.h"
 
 #include "ash/media_controller.h"
 #include "ash/multi_profile_uma.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shell.h"
@@ skipping 669 matching lines @@
 }
 
 void MultiUserWindowManagerChromeOS::SetWindowVisible(
     aura::Window* window,
     bool visible,
     int animation_time_in_ms) {
   // The MaximizeModeWindowManager will not handle invisible windows since they
   // are not user activatable. Since invisible windows are not being tracked,
   // we tell it to maximize / track this window now before it gets shown, to
   // reduce animation jank from multiple resizes.
-  if (visible) {
-    ash::Shell::Get()->maximize_mode_controller()->AddWindow(
-        ash::WmWindow::Get(window));
-  }
+  if (visible)
+    ash::Shell::Get()->maximize_mode_controller()->AddWindow(window);
 
   AnimationSetter animation_setter(
       window,
       GetAdjustedAnimationTimeInMS(animation_time_in_ms));
 
   if (visible)
     window->Show();
   else
     window->Hide();
 }
 
 int MultiUserWindowManagerChromeOS::GetAdjustedAnimationTimeInMS(
     int default_time_in_ms) const {
   return animation_speed_ == ANIMATION_SPEED_NORMAL ? default_time_in_ms :
       (animation_speed_ == ANIMATION_SPEED_FAST ? 10 : 0);
 }
 
 }  // namespace chrome