Moves Shell::maximize_mode_controller() to WmShell

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/aura/wm_window_aura.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shell_window_ids.h"
@@ skipping 723 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::GetInstance()->maximize_mode_controller()->AddWindow(
+    ash::WmShell::Get()->maximize_mode_controller()->AddWindow(
         ash::WmWindowAura::Get(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